w, who, and finger and ipv6

[Michael Grant]

I may have found a bug here, the ip address is getting truncated at the first ':'.  When I log in to my server from ipv6 and reattach to a session, here's what I see with w, who, and finger:

% who

mgrant   pts/1        2016-07-18 06:15 (2a00:S.1)

% w

 18:37:31 up 4 days, 12:26,  4 users,  load average: 0.05, 0.07, 0.05

USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU WHAT

mgrant   pts/1    2a00:S.1         Mon06    4days  0.02s  0.02s /bin/bash

%  finger

Login     Name            Tty      Idle  Login Time   Office     Office Phone

mgrant    Michael Grant   pts/1      4d  Jul 18 06:15 (2a00:S.1)

Michael Grant