tests/test-dirstatedirs

hgweb: use patch.diff() to make sensible diffs (issue1223, issue1258)

This gets us git diffs when enabled and doesn't pick erratic file parents.

#!/bin/sh

# test dirstate._dirs refcounting
hg init t
cd t
mkdir -p a/b/c/d
touch a/b/c/d/x
touch a/b/c/d/y
touch a/b/c/d/z
hg ci -Am m
hg mv a z