Fix FancyBboxPatch Typo

A tiny cosmetic fix.  Previous behavior was
``` python
>>> from matplotlib.patches import FancyBboxPatch
>>> print FancyBboxPatch((0, 0), 1, 1)
FancyBboxPatchFancyBboxPatch(0,0;1x1)
```
After this PR it is
``` python
>>> print FancyBboxPatch((0, 0), 1, 1)
FancyBboxPatch(0,0;1x1)
```