tests/test-merge3

patch: return list of modified files even when an exception is raised

The file list is passed in as an argument and updated in place.
This fixes issue399.

#!/bin/sh

hg init
echo This is file a1 > a
hg add a
hg commit -m "commit #0" -d "1000000 0"
touch b
hg add b
rm b
hg commit -A -m"comment #1" -d "1000000 0"