style tweak for travis

Author: chrispycheng

nibabel/cmdline/diff.py

@@ -60,7 +60,6 @@ def are_values_different(*values):
 
         if type(value0) != type(value):  # if types are different, then we consider them different
             return True
-        
         elif isinstance(value0, np.ndarray):
             if np.any(value0 != value):  # special test for ndarray
                 return True