umbraco/Umbraco-CMS — pull request #318 by BatJan (2014-03-13 06:34:16+00:00)
Title: Fix of U4-2449 Change the default users language to en-us

...Instead I changed the created language to be en-GB since most 1. time installers are probably using the en-GB setting anyway. But now the created user and the created language match! :)