Improve line counting operation in WPT UI output

servo · bors-servo · Dec 7, 2015 · Dec 6, 2015 · Dec 6, 2015 · Dec 6, 2015
commit dfac35c77d973e7d6e06df0442b20c30619e0c72
diff --git a/tests/wpt/grouping_formatter.py b/tests/wpt/grouping_formatter.py
@@ -67,7 +67,7 @@ def text_to_erase_display(self):
         if not self.interactive or not self.current_display:
             return ""
         return ((self.move_up + self.clear_eol) *
-                len(self.current_display.splitlines()))
+                self.current_display.count('\n'))
 
     def generate_output(self, text=None, new_display=None):
         if not self.interactive: