ASDF 3 warnings

[Hellseher]

SBCL 2.1.4
portable-threads - aa26bf3

WARNING:
   Deprecated recursive use of (ASDF/OPERATE:OPERATE 'ASDF/LISP-ACTION:LOAD-OP
   '("portable-threads/test")) while visiting
   (ASDF/LISP-ACTION:TEST-OP "portable-threads") - please use proper
   dependencies instead

[binghe]

ffb8830 should have fixed this issue. Thanks for report.