0.12.3dev: Convert the `format` argument to `strftime()` to `str`, because Python 2.4 and 2.5 choke on unicode.
0.12.3dev: Convert the `format` argument to `strftime()` to `str`, because Python 2.4 and 2.5 choke on unicode.

Patch by guidod-2007-. Closes #10322.


git-svn-id: 7bda06b145a4a8e9a7f4be07d7c3eb82923a12d6@10828 af82e41b-90c4-0310-8c96-b1721e28e2e2

walty8/trac,netjunki/trac-Pygit2,jun66j5/trac-ja,walty8/trac,netjunki/trac-Pygit2,walty8/trac,netjunki/trac-Pygit2,jun66j5/trac-ja,jun66j5/trac-ja,jun66j5/trac-ja,walty8/trac