Bug 1301109 - Follow-up to fix bustage caused by the string change in bug 1277895. r=bustage

MozReview-Commit-ID: 6X0acYYiLOe

toolkit/components/passwordmgr/test/mochitest/test_prompt_noWindow.html

@@ -36,7 +36,7 @@ runInParent(() => {
 
 add_task(function* test_sandbox_xhr() {
   let state = {
-    msg         : "http://mochi.test:8888 is requesting your username and password.\n\nThe site says: “mochitest”",
+    msg         : "http://mochi.test:8888 is requesting your username and password. The site says: “mochitest”",
     title       : "Authentication Required",
     textValue   : "mochiuser1",
     passValue   : "mochipass1",