use double-quoted string

Author: davidchambers

src/Data/String/Regex.js

@@ -75,7 +75,7 @@ exports._replaceBy = function (just) {
           return s.replace(r, function (match) {
             var groups = [];
             var group, i = 1;
-            while (typeof (group = arguments[i++]) !== 'number') {
+            while (typeof (group = arguments[i++]) !== "number") {
               groups.push(group == null ? nothing : just(group));
             }
             return f(match)(groups);