[Bug 7977] date format differs from Windows

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=7977

[e-mail] changed:

What    |Removed                     |Added
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Attachment #5730 is|0                           |1
           obsolete|                            |

------- Additional Comments From [e-mail]  2007-18-04 08:58 -------
Created an attachment (id=5842)
 --> (http://bugs.winehq.org/attachment.cgi?id=5842&action=view)
code style & add a test

New patch.

- Conform to contextual code style.
  - Adds a test case with the following assertions:
    - "%c" is always the same as "%x %X"
    - None of the ISO C99 or GNU extensions that windows doesn't support are
supported by wine.