anv: Fix cache UUID generation.

I asked Emil to switch from 0 (success) vs. -1 (fail) to use a boolean
in my review comments.  The "not" went missing.  Easy mistake, but the
result is that nothing runs at all :)

Fix whitespace while we're here too.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
1 file changed