DOC: Try fix PEP8 spacing issue.

Author: mdhsieh

pandas/core/series.py

@@ -251,7 +251,7 @@ class Series(base.IndexOpsMixin, generic.NDFrame):
     Note that the Index is first build with the keys from the dictionary.
     After this the Series is reindexed with the given Index values, hence we
     get all NaN as a result.
-    
+
     Constructing Series from a list with `copy=False`.
 
     >>> r = [1, 2]