tests: tidy up reporting of skipped tests
if not verbose:
- print 's' rather than '.'
- pass skipped test reports back to parent for -j
- report which tests were skipped at the end
- print '.' after test completion
adding da/foo
adding foo
% manifest
200 Script output follows
drwxr-xr-x da
-rw-r--r-- 4 foo
200 Script output follows
-rw-r--r-- 4 foo