[1.2.X] Fixed #14421 -- Clarified the english in the i18n documentation....

[1.2.X] Fixed #14421 -- Clarified the english in the i18n documentation. Thanks to Ned Batchelder for the report and patch.

Backport of r14015 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.2.X@14023 bcc190cf-cafb-0310-a4f2-bffc1f526a37