standards/52343: wcsnrtombs missing man-page

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>Number:         52343
>Category:       standards
>Synopsis:       wcsnrtombs missing man-page
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    standards-manager
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Mon Jun 26 16:05:00 +0000 2017
>Originator:     Kamil Rytarowski
>Release:        NetBSD 8.99.1 amd64
>Organization:
TNF
>Environment:
NetBSD chieftec 8.99.1 NetBSD 8.99.1 (GENERIC) #3: Mon Jun 26 02:43:39 CEST 2017  root@chieftec:/public/netbsd-root/sys/arch/amd64/compile/GENERIC amd64
>Description:
http://pubs.opengroup.org/onlinepubs/9699919799/functions/wcsnrtombs.html

$ nm /usr/lib/libc.so|grep wcsnrtombs
00000000000ff817 T _citrus_ctype_wcsnrtombs_fallback
00000000000a8e17 T wcsnrtombs
00000000000a8c34 T wcsnrtombs_l
>How-To-Repeat:
$ man wcsnrtombs
man: no entry for wcsnrtombs in the manual.
>Fix:
Add a man-page.