Check whether quilt generates patches properly so that GNU patch recognizes
file creates and deletions.

	$ rm -rf d
	$ mkdir -p d/patches
	$ cd d

	$ echo delete > delete
	$ quilt new test.diff
	> Patch %{P}test.diff is now on top

	$ quilt add create
	> File create added to patch %{P}test.diff

	$ echo create > create
	$ quilt refresh
	> Refreshed patch %{P}test.diff

	$ quilt add delete
	> File delete added to patch %{P}test.diff

	$ rm -f delete
	$ quilt refresh
	> Refreshed patch %{P}test.diff

	$ quilt pop -q
	> Removing patch %{P}test.diff
	> No patches applied

	$ echo create > create
	$ rm -f delete
	$ patch -p1 --dry-run < patches/test.diff
	> The next patch would create the file create,
	> which already exists!  Assume -R? [n] 
	> Apply anyway? [n] 
	> Skipping patch.
	> 1 out of 1 hunk ignored -- saving rejects to file create.rej
	> The next patch would delete the file delete,
	> which does not exist!  Assume -R? [n] 
	> Apply anyway? [n] 
	> Skipping patch.
	> 1 out of 1 hunk ignored

	$ cd ..
	$ rm -rf d