tests/test-issue433

test 261a9f47b44b: grep w/ match in last line w/o newline

Last character in match output omitted to avoid infinite loop.

#!/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