[PATCH] udev: cool test scripts again

[PATCH] udev: cool test scripts again

> But the test.block script doesn't catch any partitions on the block
> devices :)

Never happy!

        [19:07:52]root@phantasy:~/src/udev/udev# ./test.block
        [19:13:37]root@phantasy:~/src/udev/udev# ls /udev/hd*
        ls: /udev/hd*: No such file or directory
        [19:13:42]root@phantasy:~/src/udev/udev# ./test.block
        [19:13:53]root@phantasy:~/src/udev/udev# ls /udev/hd*
        /udev/hda   /udev/hda2  /udev/hda4  /udev/hda6  /udev/hdd
        /udev/hda1  /udev/hda3  /udev/hda5  /udev/hdc

test.block now recurses /sys/block, looking for partitions.  Should add
all drives and all partitions.