Test the delete command.

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

	$ cat > test.txt
	< Calling pci_match_id() would be more feasible.

	$ quilt new test1
	> Patch %{P}test1 is now on top

	$ quilt add test.txt
	> File test.txt added to patch %{P}test1

	$ cat > test.txt
	< Try the following patch instead.

	$ quilt refresh
	> Refreshed patch %{P}test1

	$ quilt new test2
	> Patch %{P}test2 is now on top

	$ quilt add test.txt
	> File test.txt added to patch %{P}test2

	$ cat > test.txt
	< Ok, that's fine with me if you want to do that instead.

	$ quilt refresh
	> Refreshed patch %{P}test2

	$ quilt pop
	> Removing patch %{P}test2
	> Restoring test.txt
	> 
	> Now at patch %{P}test1

	$ quilt series
	> %{P}test1
	> %{P}test2

	$ quilt delete -n
	> Removed patch %{P}test2

	$ quilt series
	> %{P}test1

	$ quilt pop
	> Removing patch %{P}test1
	> Restoring test.txt
	> 
	> No patches applied

	$ quilt delete test1
	> Removed patch %{P}test1

	$ quilt series

	$ cd ..
	$ rm -rf d