Bug 1207497 - Part 3: Fix wrong replacement in debug print in toolkit/mozapps/downloads/tests/unit/test_lowMinutes.js. r=me DONTBUILD

--HG--
extra : commitid : J6B41yG7V8K
extra : amend_source : 0df1b2c622ba3f8d1d0fea3e8c35b638dc0e34f4

toolkit/mozapps/downloads/tests/unit/test_lowMinutes.js

@@ -18,7 +18,9 @@ Components.utils.import("resource://gre/modules/DownloadUtils.jsm");
  * @usage _("Hello World") -> prints "Hello World"
  * @usage _(1, 2, 3) -> prints "1 2 3"
  */
-var _ = (some, debug, text, to) => print(Array.slice(arguments).join(" "));
+var _ = function(some, debug, text, to) {
+  print(Array.slice(arguments).join(" "));
+};
 
 _("Make an array of time lefts and expected string to be shown for that time");
 var expectedTimes = [