bin/49896: ping6 doesn't have timeout feature like ping -w

[ozaki-r%netbsd.org@localhost]

>Number:         49896
>Category:       bin
>Synopsis:       ping6 doesn't have timeout feature like ping -w
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    bin-bug-people
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Wed May 13 10:40:00 +0000 2015
>Originator:     Ryota Ozaki
>Release:        current
>Organization:
>Environment:
current
>Description:
ping6 doesn't have timeout feature. It annoys us when we want to write negative tests;
we have to wait long time to know that ping6 fails expectedly.

ping has the feature, option -w.
>How-To-Repeat:
N/A
>Fix:
N/A