xfs/504 description

Hi Darrick,

the description on top of tests/xfs/504 seems to have been copy and pasted from tests/generic/453 and does't seem to actually match the test cases. Do you have a proper description?

Yeah, I was going to send Eryu a fix patch tomorrow once I finish de-crazying from the merge window. :)

x/504 tests that online label setting and getting works, and has nothing to do with directory entries. Silly /me copypasta'd. :(

--D