Add -m for commit and deprecate -t
Index: hg/doc/hg.1.txt
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#!/bin/sh -x
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 -t "test" -u test -d "0 0"