diff --git a/mercurial/ui.py b/mercurial/ui.py --- a/mercurial/ui.py +++ b/mercurial/ui.py @@ -928,8 +928,7 @@ # opencode timeblockedsection because this is a critical path starttime = util.timer() try: - for a in msgs: - self.fout.write(a) + self.fout.write(''.join(msgs)) except IOError as err: raise error.StdioError(err) finally: