lib/59227: NetBSD lacks getopt_long_only(3)

[thorpej%me.com@localhost]

>Number:         59227
>Category:       lib
>Synopsis:       NetBSD lacks getopt_long_only(3)
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    lib-bug-people
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Thu Mar 27 19:05:00 +0000 2025
>Originator:     Jason Thorpe
>Release:        NetBSD 10.1
>Organization:
RISCy Business
>Environment:
(Does not matter.)
>Description:
NetBSD has getopt_long(3), but not getopt_long_only(3).  A description of getopt_long_only(3) can be found here:

    https://refspecs.linuxbase.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/baselib-getopt-long-only-3.html

>How-To-Repeat:
See above.
>Fix:
Yes, please!