First dump
foo/
foo/a/
foo/b/
foo/c/
foo/file1
foo/file2
foo/a/filea
foo/b/fileb
foo/c/filec
Second dump
foo/
foo/a/
foo/b/
foo/c/
Begin directory listing 1
foo
foo/a
foo/a/filea
foo/b
foo/b/fileb
foo/c
foo/c/filec
foo/file1
foo/file2
End directory listing 1
foo/
foo/a/
foo/b/
foo/c/
Begin directory listing 2
foo
foo/a
foo/a/filec
foo/b
foo/b/filea
foo/c
foo/c/fileb
foo/file1
foo/file2
End directory listing 2

