diff --git a/actionpack/lib/action_view/helpers/form_options_helper.rb b/actionpack/lib/action_view/helpers/form_options_helper.rb
index 6b3d80cbf0..dec87013d3 100644
--- a/actionpack/lib/action_view/helpers/form_options_helper.rb
+++ b/actionpack/lib/action_view/helpers/form_options_helper.rb
@@ -519,7 +519,7 @@ def grouped_options_for_select(grouped_options, selected_key = nil, options = {}
         else
           prompt  = options
           options = {}
-          message = "Passing the prompt to grouped_options_for_select as an argument is deprecated. " /
+          message = "Passing the prompt to grouped_options_for_select as an argument is deprecated. " \
                     "Please use an options hash like `{ prompt: #{prompt.inspect} }`."
           ActiveSupport::Deprecation.warn(message, caller)
         end
diff --git a/actionpack/lib/action_view/helpers/form_tag_helper.rb b/actionpack/lib/action_view/helpers/form_tag_helper.rb
index c92b38e2b9..11bc0cbec8 100644
--- a/actionpack/lib/action_view/helpers/form_tag_helper.rb
+++ b/actionpack/lib/action_view/helpers/form_tag_helper.rb
@@ -425,16 +425,16 @@ def submit_tag(value = "Save changes", options = {})
         options = options.stringify_keys
 
         if disable_with = options.delete("disable_with")
-          message = ":disable_with option is deprecated and will be removed from Rails 4.1. " /
-                    "Use ':data => { :disable_with => \'Text\' }' instead."
+          message = ":disable_with option is deprecated and will be removed from Rails 4.1. " \
+                    "Use 'data: { disable_with: \'Text\' }' instead."
           ActiveSupport::Deprecation.warn(message, caller)
 
           options["data-disable-with"] = disable_with
         end
 
         if confirm = options.delete("confirm")
-          message = ":confirm option is deprecated and will be removed from Rails 4.1. " /
-                    "Use ':data => { :confirm => \'Text\' }' instead'."
+          message = ":confirm option is deprecated and will be removed from Rails 4.1. " \
+                    "Use 'data: { confirm: \'Text\' }' instead'."
           ActiveSupport::Deprecation.warn(message, caller)
 
           options["data-confirm"] = confirm
@@ -487,16 +487,16 @@ def button_tag(content_or_options = nil, options = nil, &block)
         options = options.stringify_keys
 
         if disable_with = options.delete("disable_with")
-          message = ":disable_with option is deprecated and will be removed from Rails 4.1. " /
-                    "Use ':data => { :disable_with => \'Text\' }' instead."
+          message = ":disable_with option is deprecated and will be removed from Rails 4.1. " \
+                    "Use 'data: { disable_with: \'Text\' }' instead."
           ActiveSupport::Deprecation.warn(message, caller)
 
           options["data-disable-with"] = disable_with
         end
 
         if confirm = options.delete("confirm")
-          message = ":confirm option is deprecated and will be removed from Rails 4.1. " /
-                    "Use ':data => { :confirm => \'Text\' }' instead'."
+          message = ":confirm option is deprecated and will be removed from Rails 4.1. " \
+                    "Use 'data: { confirm: \'Text\' }' instead'."
           ActiveSupport::Deprecation.warn(message, caller)
 
           options["data-confirm"] = confirm
@@ -541,8 +541,8 @@ def image_submit_tag(source, options = {})
         options = options.stringify_keys
 
         if confirm = options.delete("confirm")
-          message = ":confirm option is deprecated and will be removed from Rails 4.1. " /
-                    "Use ':data => { :confirm => \'Text\' }' instead'."
+          message = ":confirm option is deprecated and will be removed from Rails 4.1. " \
+                    "Use 'data: { confirm: \'Text\' }' instead'."
           ActiveSupport::Deprecation.warn(message, caller)
 
           options["data-confirm"] = confirm
diff --git a/actionpack/lib/action_view/helpers/url_helper.rb b/actionpack/lib/action_view/helpers/url_helper.rb
index 4d6367e66a..2a1dd86e0a 100644
--- a/actionpack/lib/action_view/helpers/url_helper.rb
+++ b/actionpack/lib/action_view/helpers/url_helper.rb
@@ -577,8 +577,8 @@ def convert_options_to_data_attributes(options, html_options)
             method  = html_options.delete('method')
 
             if confirm
-              message = ":confirm option is deprecated and will be removed from Rails 4.1. " /
-                        "Use ':data => { :confirm => \'Text\' }' instead."
+              message = ":confirm option is deprecated and will be removed from Rails 4.1. " \
+                        "Use 'data: { confirm: \'Text\' }' instead."
               ActiveSupport::Deprecation.warn(message, caller)
 
               html_options["data-confirm"] = confirm
@@ -587,8 +587,8 @@ def convert_options_to_data_attributes(options, html_options)
             add_method_to_attributes!(html_options, method) if method
 
             if disable_with
-              message = ":disable_with option is deprecated and will be removed from Rails 4.1. " /
-                        "Use ':data => { :disable_with => \'Text\' }' instead."
+              message = ":disable_with option is deprecated and will be removed from Rails 4.1. " \
+                        "Use 'data: { disable_with: \'Text\' }' instead."
               ActiveSupport::Deprecation.warn(message, caller)
 
               html_options["data-disable-with"] = disable_with
diff --git a/actionpack/lib/action_view/template/resolver.rb b/actionpack/lib/action_view/template/resolver.rb
index 32a9152707..086cc0bacc 100644
--- a/actionpack/lib/action_view/template/resolver.rb
+++ b/actionpack/lib/action_view/template/resolver.rb
@@ -235,7 +235,7 @@ def extract_handler_and_format(path, default_formats)
 
       extension = pieces.pop
       unless extension
-        message = "The file #{path} did not specify a template handler. The default is currently ERB, " /
+        message = "The file #{path} did not specify a template handler. The default is currently ERB, " \
                   "but will change to RAW in the future."
         ActiveSupport::Deprecation.warn(message, caller)
       end
diff --git a/actionpack/test/template/form_tag_helper_test.rb b/actionpack/test/template/form_tag_helper_test.rb
index 945dff2a29..0a94fa079b 100644
--- a/actionpack/test/template/form_tag_helper_test.rb
+++ b/actionpack/test/template/form_tag_helper_test.rb
@@ -411,7 +411,7 @@ def test_submit_tag_with_confirmation
   end
 
   def test_submit_tag_with_deprecated_confirmation
-    assert_deprecated ":confirm option is deprecated and will be removed from Rails 4.1. Use ':data => { :confirm => \'Text\' }' instead" do
+    assert_deprecated ":confirm option is deprecated and will be removed from Rails 4.1. Use 'data: { confirm: \'Text\' }' instead" do
       assert_dom_equal(
         %(<input name='commit' type='submit' value='Save' data-confirm="Are you sure?" />),
         submit_tag("Save", :confirm => "Are you sure?")
@@ -478,7 +478,7 @@ def test_button_tag_with_confirmation
   end
 
   def test_button_tag_with_deprecated_confirmation
-    assert_deprecated ":confirm option is deprecated and will be removed from Rails 4.1. Use ':data => { :confirm => \'Text\' }' instead" do
+    assert_deprecated ":confirm option is deprecated and will be removed from Rails 4.1. Use 'data: { confirm: \'Text\' }' instead" do
       assert_dom_equal(
         %(<button name="button" type="submit" data-confirm="Are you sure?">Save</button>),
         button_tag("Save", :type => "submit", :confirm => "Are you sure?")
@@ -494,7 +494,7 @@ def test_image_submit_tag_with_confirmation
   end
 
   def test_image_submit_tag_with_deprecated_confirmation
-    assert_deprecated ":confirm option is deprecated and will be removed from Rails 4.1. Use ':data => { :confirm => \'Text\' }' instead" do
+    assert_deprecated ":confirm option is deprecated and will be removed from Rails 4.1. Use 'data: { confirm: \'Text\' }' instead" do
       assert_dom_equal(
         %(<input type="image" src="/images/save.gif" data-confirm="Are you sure?" />),
         image_submit_tag("save.gif", :confirm => "Are you sure?")
diff --git a/actionpack/test/template/url_helper_test.rb b/actionpack/test/template/url_helper_test.rb
index bbfdf7f944..1bb625213d 100644
--- a/actionpack/test/template/url_helper_test.rb
+++ b/actionpack/test/template/url_helper_test.rb
@@ -95,7 +95,7 @@ def test_button_to_with_javascript_confirm
   end
 
   def test_button_to_with_deprecated_confirm
-    assert_deprecated ":confirm option is deprecated and will be removed from Rails 4.1. Use ':data => { :confirm => \'Text\' }' instead" do
+    assert_deprecated ":confirm option is deprecated and will be removed from Rails 4.1. Use 'data: { confirm: \'Text\' }' instead" do
       assert_dom_equal(
         %{<form method="post" action="http://www.example.com" class="button_to"><div><input data-confirm="Are you sure?" type="submit" value="Hello" /></div></form>},
         button_to("Hello", "http://www.example.com", confirm: "Are you sure?")
@@ -111,7 +111,7 @@ def test_button_to_with_javascript_disable_with
   end
 
   def test_button_to_with_javascript_deprecated_disable_with
-    assert_deprecated ":disable_with option is deprecated and will be removed from Rails 4.1. Use ':data => { :disable_with => \'Text\' }' instead" do
+    assert_deprecated ":disable_with option is deprecated and will be removed from Rails 4.1. Use 'data: { disable_with: \'Text\' }' instead" do
       assert_dom_equal(
         %{<form method="post" action="http://www.example.com" class="button_to"><div><input data-disable-with="Greeting..." type="submit" value="Hello" /></div></form>},
         button_to("Hello", "http://www.example.com", disable_with: "Greeting...")
@@ -134,7 +134,7 @@ def test_button_to_with_remote_and_javascript_confirm
   end
 
   def test_button_to_with_remote_and_javascript_with_deprecated_confirm
-    assert_deprecated ":confirm option is deprecated and will be removed from Rails 4.1. Use ':data => { :confirm => \'Text\' }' instead" do
+    assert_deprecated ":confirm option is deprecated and will be removed from Rails 4.1. Use 'data: { confirm: \'Text\' }' instead" do
       assert_dom_equal(
         %{<form method="post" action="http://www.example.com" class="button_to" data-remote="true"><div><input data-confirm="Are you sure?" type="submit" value="Hello" /></div></form>},
         button_to("Hello", "http://www.example.com", remote: true, confirm: "Are you sure?")
@@ -150,7 +150,7 @@ def test_button_to_with_remote_and_javascript_disable_with
   end
 
   def test_button_to_with_remote_and_javascript_deprecated_disable_with
-    assert_deprecated ":disable_with option is deprecated and will be removed from Rails 4.1. Use ':data => { :disable_with => \'Text\' }' instead" do
+    assert_deprecated ":disable_with option is deprecated and will be removed from Rails 4.1. Use 'data: { disable_with: \'Text\' }' instead" do
       assert_dom_equal(
         %{<form method="post" action="http://www.example.com" class="button_to" data-remote="true"><div><input data-disable-with="Greeting..." type="submit" value="Hello" /></div></form>},
         button_to("Hello", "http://www.example.com", remote: true, disable_with: "Greeting...")
@@ -267,19 +267,19 @@ def test_link_tag_with_javascript_confirm
   end
 
   def test_link_tag_with_deprecated_confirm
-    assert_deprecated ":confirm option is deprecated and will be removed from Rails 4.1. Use ':data => { :confirm => \'Text\' }' instead" do
+    assert_deprecated ":confirm option is deprecated and will be removed from Rails 4.1. Use 'data: { confirm: \'Text\' }' instead" do
       assert_dom_equal(
         %{<a href="http://www.example.com" data-confirm="Are you sure?">Hello</a>},
         link_to("Hello", "http://www.example.com", confirm: "Are you sure?")
       )
     end
-    assert_deprecated ":confirm option is deprecated and will be removed from Rails 4.1. Use ':data => { :confirm => \'Text\' }' instead" do
+    assert_deprecated ":confirm option is deprecated and will be removed from Rails 4.1. Use 'data: { confirm: \'Text\' }' instead" do
       assert_dom_equal(
         %{<a href="http://www.example.com" data-confirm="You cant possibly be sure, can you?">Hello</a>},
         link_to("Hello", "http://www.example.com", confirm: "You cant possibly be sure, can you?")
       )
     end
-    assert_deprecated ":confirm option is deprecated and will be removed from Rails 4.1. Use ':data => { :confirm => \'Text\' }' instead" do
+    assert_deprecated ":confirm option is deprecated and will be removed from Rails 4.1. Use 'data: { confirm: \'Text\' }' instead" do
       assert_dom_equal(
         %{<a href="http://www.example.com" data-confirm="You cant possibly be sure,\n can you?">Hello</a>},
         link_to("Hello", "http://www.example.com", confirm: "You cant possibly be sure,\n can you?")
@@ -351,7 +351,7 @@ def test_link_tag_using_post_javascript_and_confirm
   end
 
   def test_link_tag_using_post_javascript_and_with_deprecated_confirm
-    assert_deprecated ":confirm option is deprecated and will be removed from Rails 4.1. Use ':data => { :confirm => \'Text\' }' instead" do
+    assert_deprecated ":confirm option is deprecated and will be removed from Rails 4.1. Use 'data: { confirm: \'Text\' }' instead" do
       assert_dom_equal(
         %{<a href="http://www.example.com" data-method="post" rel="nofollow" data-confirm="Are you serious?">Hello</a>},
         link_to("Hello", "http://www.example.com", method: :post, confirm: "Are you serious?")
@@ -367,7 +367,7 @@ def test_link_tag_using_delete_javascript_and_href_and_confirm
   end
 
   def test_link_tag_using_delete_javascript_and_href_and_with_deprecated_confirm
-    assert_deprecated ":confirm option is deprecated and will be removed from Rails 4.1. Use ':data => { :confirm => \'Text\' }' instead" do
+    assert_deprecated ":confirm option is deprecated and will be removed from Rails 4.1. Use 'data: { confirm: \'Text\' }' instead" do
       assert_dom_equal(
         %{<a href="\#" rel="nofollow" data-confirm="Are you serious?" data-method="delete">Destroy</a>},
         link_to("Destroy", "http://www.example.com", method: :delete, href: '#', confirm: "Are you serious?")