Converted Belerusian localflavor tests to use the new, less verbose format. ...

Converted Belerusian localflavor tests to use the new, less verbose format.  Thanks to Idan Gazit for the patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@14932 bcc190cf-cafb-0310-a4f2-bffc1f526a37