fix indentation

zhoubecky · zhoubecky · commit db846a13301d · 2018-03-05T13:54:55.000-05:00
diff --git a/lib/matplotlib/backend_bases.py b/lib/matplotlib/backend_bases.py
@@ -196,7 +196,7 @@ def show(cls, block=None, warn=True):
                         "so cannot show the figure")
                 return
         if cls.mainloop is None:
-            return        
+            return
         if block is None:
             # Hack: Are we in IPython's pylab mode?
             from matplotlib import pyplot
