Fix rubocop violations

actionpack/lib/action_controller/metal/redirecting.rb

@@ -200,7 +200,7 @@ def _url_host_allowed?(url)
         return true if host == request.host
         return false unless host.nil?
         return false unless url.to_s.start_with?("/")
-        return !url.to_s.start_with?("//")
+        !url.to_s.start_with?("//")
       rescue ArgumentError, URI::Error
         false
       end

actionpack/lib/action_dispatch/middleware/cookies.rb

@@ -450,7 +450,7 @@ def handle_options(options)
 
           if options[:domain] == :all || options[:domain] == "all"
             cookie_domain = ""
-            dot_splitted_host = request.host.split('.', -1)
+            dot_splitted_host = request.host.split(".", -1)
 
             # Case where request.host is not an IP address or it's an invalid domain
             # (ip confirms to the domain structure we expect so we explicitly check for ip)
@@ -460,19 +460,19 @@ def handle_options(options)
             end
 
             # If there is a provided tld length then we use it otherwise default domain.
-            if options[:tld_length].present? 
+            if options[:tld_length].present?
               # Case where the tld_length provided is valid
               if dot_splitted_host.length >= options[:tld_length]
-                cookie_domain = dot_splitted_host.last(options[:tld_length]).join('.')
+                cookie_domain = dot_splitted_host.last(options[:tld_length]).join(".")
               end
             # Case where tld_length is not provided
             else
               # Regular TLDs
               if !(/([^.]{2,3}\.[^.]{2})$/.match?(request.host))
-                cookie_domain = dot_splitted_host.last(2).join('.')
+                cookie_domain = dot_splitted_host.last(2).join(".")
               # **.**, ***.** style TLDs like co.uk and com.au
               else
-                cookie_domain = dot_splitted_host.last(3).join('.')
+                cookie_domain = dot_splitted_host.last(3).join(".")
               end
             end
 

actionpack/test/dispatch/cookies_test.rb

@@ -259,7 +259,7 @@ def set_cookie_with_domain_and_tld
 
     def set_cookie_with_domain_and_longer_tld
       cookies[:user_name] = { value: "rizwanreza", domain: :all, tld_length: 4 }
-      head :ok 
+      head :ok
     end
 
     def delete_cookie_with_domain_and_tld