tests/test-paths

mq: incorporate mq repo config when using --mq

For example, incoming should use the paths defined in .hg/patches/hgrc
instead of .hg/hgrc.

#!/bin/sh
hg init a
hg clone a b
cd a
echo '[paths]' >> .hg/hgrc
echo 'dupe = ../b' >> .hg/hgrc
hg in dupe | fgrep '../'
cd ..
hg -R a in dupe | fgrep '../'
true