lib/56577: Missing long double remainderl

[coypu%sdf.org@localhost]

>Number:         56577
>Category:       lib
>Synopsis:       Missing long double remainderl
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    lib-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Dec 24 20:40:00 +0000 2021
>Originator:     coypu
>Release:        NetBSD 9.99.92
>Organization:
>Environment:
NetBSD planets 9.99.92 NetBSD 9.99.92 (GENERIC) #0: Sun Dec 19 21:53:15 IST 2021  fly@planets:/bracket/obj/sys/arch/amd64/compile/GENERIC amd64

>Description:
> nm /usr/lib/libm.so |grep remainder
0000000000019660 T __ieee754_remainder
0000000000019630 T __ieee754_remainderf
0000000000017fba T remainder
0000000000017f59 T remainderf

No remainderl, long double variant.
>How-To-Repeat:

>Fix: