Fixed small bug in Appender class in docstring module.

cgringmuth · tobias47n9e · commit 6e9f34f6207f · 2014-06-25T18:12:47.000+02:00
Former Bug was that all strings will be append directly after old
docstring independent of self.join
Can be tested with matplotlib.pyplot.figimage.__doc__ where Appender
class has been used.
diff --git a/lib/matplotlib/docstring.py b/lib/matplotlib/docstring.py
@@ -87,7 +87,7 @@ def __init__(self, addendum, join=''):
 
     def __call__(self, func):
         docitems = [func.__doc__, self.addendum]
-        func.__doc__ = func.__doc__ and ''.join(docitems)
+        func.__doc__ = func.__doc__ and self.join.join(docitems)
         return func
 
 
