coal/paper: Wrap diff in <pre/>
In text-mode browsers the diff is otherwise rendered
as just one long line per file. Other styles do the same.
#!/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