bin/59642: kdump doesn't show port number for mbsoname

[campbell+netbsd%mumble.net@localhost]

>Number:         59642
>Category:       bin
>Synopsis:       kdump doesn't show port number for mbsoname
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Sep 08 22:20:00 +0000 2025
>Originator:     Taylor R Campbell
>Release:        current, 11, 10, 9, ...
>Organization:
The NotBSD Foundaportnumber
>Environment:
>Description:
kdump only shows the address, not the port number.
>How-To-Repeat:
$ ktrace nc 127.0.0.1 12345
$ kdump | grep mbsoname
 27575  27575 nc       MISC  mbsoname: [127.0.0.1]


>Fix:
Yes, please!

Use more %-directives in sockaddr_snprintf.