small tweak

Author: yyx990803

test/mock-loaders/docs.js

@@ -1,5 +1,7 @@
 module.exports = function (source, map) {
-  this.callback(null, 'module.exports = function(Component) {Component.options.__docs = ' +
-    JSON.stringify(source) +
-    '}', map)
+  this.callback(null,
+    'module.exports = function(Component) {Component.options.__docs = ' +
+      JSON.stringify(source) +
+    '}',
+  map)
 }