test fixes for Solaris 2.6
Solaris 2.6's stock sed doesn't support alternatives in regular
expression. We workaround by breaking up the regexp.
#!/bin/sh
hg init
echo "[hooks]" > .hg/hgrc
echo 'precommit = echo precommit hook' >> .hg/hgrc
echo 'commit = echo commit hook: $NODE' >> .hg/hgrc
echo a > a
hg add a
hg commit -m "test" -d "0 0"