Corpus for keyctl$unlink:

Coverage	Program
606	add_key$keyring-keyctl$setperm-keyctl$unlink
332	open$dir-perf_event_open-keyctl$KEYCTL_MOVE-add_key$keyring-keyctl$unlink-keyctl$KEYCTL_RESTRICT_KEYRING
318	keyctl$update-request_key-add_key$keyring-keyctl$unlink
284	keyctl$unlink
223	add_key$fscrypt_v1-keyctl$unlink
46	keyctl$unlink
46	keyctl$unlink-add_key$fscrypt_v1-stat-setresuid-keyctl$setperm