Avoid looking up usernames if the current user owns the .hgrc file
Converting uids into usernames may be somewhat expensive when NIS
or LDAP is involved.
#!/bin/sh
echo "[extensions]" >> $HGRCPATH
echo "mq=" >> $HGRCPATH
hg init a
cd a
echo 'base' > base
hg ci -Ambase -d '1 0'
hg qnew -mmqbase mqbase
hg qsave
hg qrestore 2