style: add missing eof newline

Author: hauptbenutzer

test/mock-loaders/docs.js

@@ -2,4 +2,4 @@ module.exports = function (source, map) {
   this.callback(null, 'module.exports = function(Component) {Component.options.__docs = ' +
     JSON.stringify(source) +
     '}', map)
-}
+}