color: add --color switch
--color works like GNU grep --color. --color=auto only colorizes output
for non-dumb terminals that are TTYs.
#!/bin/sh
"$TESTDIR/hghave" execbit || exit 80
hg init repo
cd repo
echo foo > foo
chmod 644 foo
hg ci -qAm '644'
chmod 755 foo
hg ci -qAm '755'
echo '% reverting to rev 0'
hg revert -a -r 0
hg st
hg diff --git