fix include matching

snapshots/updates.test.js.snap

@@ -108,7 +108,19 @@ exports[`dual 2`] = `
 }
 `;
 
-exports[`exclude 1`] = `undefined`;
+exports[`exclude 1`] = `
+{
+  "npm": {
+    "dependencies": {
+      "updates": {
+        "info": "https://github.com/silverwind/updates",
+        "new": "537ccb7",
+        "old": "6941e05",
+      },
+    },
+  },
+}
+`;
 
 exports[`exclude 2`] = `
 {

updates.js

@@ -673,7 +673,7 @@ function canInclude(name, mode, {include, exclude}) {
   for (const re of include) {
     if (re.test(name)) return true;
   }
-  return false;
+  return include.size ? false : true;
 }
 
 function resolveFiles(filesArg) {