fixed #4

Author: zeckson

es6.js

@@ -16,6 +16,8 @@ module.exports = {
         'prefer-rest-params': 'error',
         'prefer-spread': 'error',
         'rest-spread-spacing': 'error',
-        'yield-star-spacing': ['error', 'after']
+        'yield-star-spacing': ['error', 'after'],
+
+        'quotes': ['error', 'backtick']
     }
 };

test/es6/template-only.js

@@ -1,3 +1,2 @@
 const a = `abcde`;
-const b = 'defgh';
-throw new Error(a, b);
+throw new Error(a);