CI system must have fail on cleanup issues in our code

[donaldsharp]

Recent commit gets in that should have been caught by our CI system and not allowed to continue.

	"%s: Specified Group(%s) in join is now in SSM, not allowed to create PIM state",
	__func__, inet_ntop(2, &sg->grp, buf, sizeof(buf))
pimd/pim_register.c:387: cleanup: replace inet_ntop(AF_INET, ...) with %pI4: (in pim_register_recv())
	"%s: Received Register message for Group(%s) is now in SSM, dropping the packet",
	__func__, inet_ntop(2, &sg.grp, buf, sizeof(buf))