Move commands.forget over to using new walk code. With no names, it now recursively forgets everything, as is the default behaviour of other commands. And prints the names of all files it hasn't specifically been told to forget.

#!/bin/sh

mkdir test
cd test
echo foo>foo
hg init
hg addremove
hg commit -m 1
hg verify
hg serve -p 20059 > /dev/null &
cd ..

hg clone http://localhost:20059/ copy
cd copy
hg verify
hg co
cat foo
hg manifest
hg pull

kill $!