RF: tiny pep8 fixes in py3k

Author: matthew-brett

nibabel/py3k.py

@@ -63,10 +63,10 @@ def open_latin1(filename, mode='r'):
     ints2bytes = lambda seq: ''.join(chr(i) for i in seq)
     ZEROB = chr(0)
 
-
     class FileNotFoundError(IOError):
         pass
 
+
 def getexception():
     return sys.exc_info()[1]