tests: use 'test_must_be_empty' instead of 'test ! -s'
[git] / t / t5004 /
drwxr-xr-x   ..
-rw-r--r-- 7373 big-pack.zip
-rw-r--r-- 10240 empty-with-pax-header.tar
-rw-r--r-- 62 empty.zip