zsh completion: disable defaults and verbose output when completing
If ui.verbose is set to True in hgrc, commands used to provide completions
would yield bad results. For example, qpush completion would include the
patch numbers and statuses as returned by qunapplied -v, instead of just
the patch names.
Defaults are also disabled when completing to prevent similar issues when
an option is set that changes a command's output.
#!/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