Fix review nit from bug 298004. (syncs branch/trunk)

git-svn-id: svn://10.0.0.236/trunk@190911 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/browser/base/content/browser.js

@@ -1279,7 +1279,7 @@ function ctrlNumberTabSelection(event)
   // in the range U+xxx6 - U+xxxF. Find the digit 1 corresponding to our
   // character.
   var digit1 = (event.charCode & 0xFFF0) | 1;
-  if (!regExp.exec(String.fromCharCode(digit1)))
+  if (!regExp.test(String.fromCharCode(digit1)))
     digit1 += 6;
 
   var index = event.charCode - digit1;