Enable JSHint's camelcase rule.

Author: XhmikosR

.jshintrc

@@ -1,4 +1,5 @@
 {
+    "camelcase": true,
     "curly": true,
     "eqnull": true,
     "forin": true,

Gruntfile.js

@@ -1,4 +1,4 @@
-/* jshint evil:true, node:true */
+/* jshint camelcase:false, evil:true, node:true */
 
 module.exports = function(grunt) {
 

src/cli/common.js

@@ -284,9 +284,9 @@ function cli(api){
     }
 
     function validateOptions(options) {
-        for (var option_key in options) {
-            if (!globalOptions.hasOwnProperty(option_key) && option_key !== "files") {
-                api.print(option_key + " is not a valid option. Exiting...");
+        for (var optionKey in options) {
+            if (!globalOptions.hasOwnProperty(optionKey) && optionKey !== "files") {
+                api.print(optionKey + " is not a valid option. Exiting...");
                 outputHelp();
                 api.quit(0);
             }