fix pep8

Author: charlesdong1991

pandas/io/formats/format.py

@@ -254,10 +254,12 @@ def _get_formatted_values(self):
         values_to_format = self.tr_series._formatting_values()
         if self.index:
             return format_array(values_to_format, None,
-                                float_format=self.float_format, na_rep=self.na_rep)
+                                float_format=self.float_format,
+                                na_rep=self.na_rep)
         else:
             return format_array(values_to_format, None,
-                                float_format=self.float_format, na_rep=self.na_rep,
+                                float_format=self.float_format,
+                                na_rep=self.na_rep,
                                 leading_space=False)
 
     def to_string(self):