matplotlib/matplotlib — pull request #2368 by mdboom (2013-09-03 16:35:32+00:00)
Title: Set locale for tests

This fixes the part of #2343 related to the date strings not matching the baseline images. Since the baseline images were created (by me) in the en_US.UTF-8 locale, we should run the tests in that locale, too, so the output files will match the baseline images.