ERROR: matplotlib.tests.test_bbox_tight.test_bbox_inches_tight_suptile_legend.test

[tacaswell]

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ERROR: matplotlib.tests.test_bbox_tight.test_bbox_inches_tight_suptile_legend.test
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Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/nose/case.py", line 197, in runTest
    self.test(*self.arg)
  File "/home/tcaswell/local_installs/lib/python2.7/site-packages/matplotlib-1.4.x-py2.7-linux-x86_64.egg/matplotlib/testing/decorators.py", line 43, in failer
    result = f(*args, **kwargs)
  File "/home/tcaswell/local_installs/lib/python2.7/site-packages/matplotlib-1.4.x-py2.7-linux-x86_64.egg/matplotlib/testing/decorators.py", line 157, in do_test
    self._tol, in_decorator=True)
  File "/home/tcaswell/local_installs/lib/python2.7/site-packages/matplotlib-1.4.x-py2.7-linux-x86_64.egg/matplotlib/testing/compare.py", line 338, in compare_images
    rms = calculate_rms(expectedImage, actualImage)
  File "/home/tcaswell/local_installs/lib/python2.7/site-packages/matplotlib-1.4.x-py2.7-linux-x86_64.egg/matplotlib/testing/compare.py", line 246, in calculate_rms
    abs_diff_image = abs(expectedImage - actualImage)
ValueError: operands could not be broadcast together with shapes (593,919,3) (590,919,3) 

svg and pdf pass

current master, python 2.7.5+, numpy 1.7.1

This also shows up in #2046 which I forgot existed until I searched for this failure.