# HG changeset patch
# User Yuya Nishihara <yuya@tcha.org>
# Date 2015-10-03 14:10:40
# Node ID c8f42c1926a557dd6ab05a76c4c6d1899a05fe9d
# Parent  1138e1d052071eb3775469aeaf5aa4e7a545fbe8

ui: send traceback of devel warning to appropriate output stream

If ui.ferr is a command-server channel, traceback should be written to it.

diff --git a/mercurial/ui.py b/mercurial/ui.py
--- a/mercurial/ui.py
+++ b/mercurial/ui.py
@@ -994,7 +994,7 @@ class ui(object):
         """issue a developer warning message"""
         msg = 'devel-warn: ' + msg
         if self.tracebackflag:
-            util.debugstacktrace(msg, 2)
+            util.debugstacktrace(msg, 2, self.ferr, self.fout)
         else:
             curframe = inspect.currentframe()
             calframe = inspect.getouterframes(curframe, 2)