[1.2.X] Converted Slovak localflavor doctests into unitttests. We have always...

[1.2.X] Converted Slovak localflavor doctests into unitttests.  We have always been at war with doctests.  Thanks to Idan Gazit.  Backport of [14952].

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.2.X@14976 bcc190cf-cafb-0310-a4f2-bffc1f526a37