usr.sbin/ctld/login.c do not reply TargetPortalGroupTag in Login response

[Edward Tomasz Napierała]

On 0723T1143, Chen Wen wrote:
> Hi
> 
> I am a mac user, when I try to use xtendsan iSCSI initiator to connect native iSCSI target, I found that the login response pdu do not have TargetPortalGroupTag key-pair.
> 
> xtendsan told me TargetPortalGroupTag is missing and disconnected.
> 
> I try to do a workaround to it and it works.

[..]

Interesting.  Looking at the current code, I don't see how it could
_not_ send the TargetPortalGroupTag.

Could you test again, without the patch below, running ctld like
this, and send me the complete output:

pkill ctld
while :; do ctld -d; done

Thanks!