Regression test: Quilt did reorder files in patches.

	$ mkdir d
	$ cd d
	$ echo one > f
	$ echo one > g
	$ mkdir patches
	$ cat > patches/test.diff
	< --- g.orig	2003-04-09 01:48:01.000000000 +0200
	< +++ g	2003-04-09 01:49:17.000000000 +0200
	< @@ -1 +1 @@
	< -one
	< +two
	< --- f.orig	2003-04-09 01:48:01.000000000 +0200
	< +++ f	2003-04-09 01:49:17.000000000 +0200
	< @@ -1 +1 @@
	< -one
	< +two

	$ cat > patches/series
	< test.diff -p0
	$ quilt push -q
	> Applying test
	> Now at patch test

	$ quilt pop -q
	> Removing test
	> No patches applied

	$ echo one > h
	$ sleep 2
	$ cat >> patches/test.diff
	< --- h.orig	2003-04-09 01:48:01.000000000 +0200
	< +++ h	2003-04-09 01:49:17.000000000 +0200
	< @@ -1 +1 @@
	< -one
	< +two

	$ quilt push -q
	> Applying test
	> Now at patch test

	$ quilt files
	> g
	> f
	> h

	$ cd ..
	$ rm -rf d