requireDictionaryWords: Sort words so binary search works

Author: jacksonrayhamilton

lib/rules/require-dictionary-words.js

@@ -248,6 +248,9 @@ module.exports.prototype = {
                     'requireDictionaryWords.' + option + ' option requires ' +
                         'an array value or should be removed'
                 );
+                // In order for binary searches to work the array must be
+                // sorted.
+                return value.sort();
             }
             return value;
         }