$ mkdir patches

	$ cat > patches/series
	< patch1.diff
	
	$ cat > patches/patch1.diff
	< --- q.orig/file1.txt
	< +++ q/file1.txt
	< @@ -0,0 +1 @@
	< +This is file1.txt.
	< --- q.orig/file2.txt
	< +++ q/file2.txt
	< @@ -0,0 +1 @@
	< +This is file2.txt.

	$ quilt push -q
	> Applying patch %{P}patch1.diff
	> Now at patch %{P}patch1.diff

	$ quilt files
	> file1.txt
	> file2.txt

	$ quilt fold -q
	< --- q.orig/file2.txt
	< +++ q/file2.txt
	< @@ -1 +0,0 @@
	< -This is file2.txt.
	< --- q.orig/dir/file3.txt  
	< +++ q/dir/file3.txt
	< @@ -0,0 +1 @@
	< +This is file3.txt.

	$ quilt diff -p ab
	> Index: b/file1.txt
	> ===================================================================
	> --- /dev/null
	> +++ b/file1.txt
	> @@ -0,0 +1 @@
	> +This is file1.txt.
	> Index: b/dir/file3.txt
	> ===================================================================
	> --- /dev/null
	> +++ b/dir/file3.txt
	> @@ -0,0 +1 @@
	> +This is file3.txt.

	$ cd dir
	$ quilt fold -q
	< --- dir.orig/file3.txt  
	< +++ dir/file3.txt
	< @@ -1 +1 @@
	< -This is file3.txt.
	< +This is file3.txt, now modified.

	$ cd ..
	$ quilt diff -p ab
	> Index: b/file1.txt
	> ===================================================================
	> --- /dev/null
	> +++ b/file1.txt
	> @@ -0,0 +1 @@
	> +This is file1.txt.
	> Index: b/dir/file3.txt
	> ===================================================================
	> --- /dev/null
	> +++ b/dir/file3.txt
	> @@ -0,0 +1 @@
	> +This is file3.txt, now modified.