mercurial.el: ignore errors on hg-after-save-hook() Don't signal an error even if running hg command fails. Otherwise, succeeding hooks won't be called.

#!/bin/sh
# http://www.selenic.com/mercurial/bts/issue433

hg init a
cd a
echo a > a
hg commit -Ama

hg parents -r 0 doesnotexist
true