[1.2.X] Fixed #14064 -- Corrected spelling of Argentinian. There are arguments...

[1.2.X] Fixed #14064 -- Corrected spelling of Argentinian. There are arguments that it can be spelled both ways (and arguments that the right phrase is Argentine), but we're going with the OED on this one.

Backport of r13492 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.2.X@13494 bcc190cf-cafb-0310-a4f2-bffc1f526a37