bin/60496: Locale-dependent UTF-8 issue over SSH session

["dreibh%simula.no@localhost via gnats" <gnats-admin%NetBSD.org@localhost>]

>Number:         60496
>Category:       bin
>Synopsis:       Locale-dependent UTF-8 issue over SSH session
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Jul 24 15:10:00 +0000 2026
>Originator:     Thomas Dreibholz
>Release:        11.0_RC6
>Organization:
SimulaMet
>Environment:
NetBSD netbsd11 11.0_RC6 NetBSD 11.0_RC6 (CUSTOM_SCTP) #0: Thu Jul 23 15:24:45 UTC 2026  root@:/usr/src/sys/arch/amd64/compile/CUSTOM_SCTP amd64
>Description:
When logged in via SSH session, NetBSD 11.0_RC6 produces an invalid separator for printf "%'d\n" when the locale is set to nb_NO.UTF-8.

Example:
$ LC_ALL=nb_NO.UTF-8 printf "%'d\n" 12345
12�345

The separator should be a space in Norwegian locale (nb_NO.UTF-8). Instead, it sends �.

$ LC_ALL=nb_NO.UTF-8 printf "%'d\n" 12345 | hexdump
0000000 3231 33c2 3534 000a                    
0000007

In the console, the "�" is shown as space, so the issue is not visible there.


For example in de_DE.UTF-8, the output is correct ("." is used here):

$ LC_ALL=de_DE.UTF-8 printf "%'d\n" 12345 
12.345

>How-To-Repeat:
$ LC_ALL=nb_NO.UTF-8 printf "%'d\n" 12345
12�345

>Fix: