Fix jshint "Warning: Path must be a string. Received null Use --force to continue."

Author: leafOfTree

Gruntfile.js

@@ -46,6 +46,9 @@ module.exports = function(grunt) {
                         'jquery.highlighttextarea.js'
                     ]
                 }
+            },
+            options: {
+                reporterOutput: ''
             }
         }
     });
@@ -62,4 +65,4 @@ module.exports = function(grunt) {
     grunt.registerTask('test', [
         'jshint'
     ]);
-};
+};