lib/57951: lib/libutil/t_snprintb:snprintb test case fails on i386

[gson%gson.org@localhost (Andreas Gustafsson)]

>Number:         57951
>Category:       lib
>Synopsis:       lib/libutil/t_snprintb:snprintb test case fails on i386
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    lib-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Feb 20 07:50:00 +0000 2024
>Originator:     Andreas Gustafsson
>Release:        NetBSD-current, source date >= 2024.02.16.19.53.40
>Organization:
>Environment:
System: NetBSD
Architecture: i386
Machine: i386
>Description:

The lib/libutil/t_snprintb:snprintb test case fails on i386 since
this commit:

  2024.02.16.19.53.40 rillig src/common/lib/libutil/snprintb.c 1.33
  2024.02.16.19.53.40 rillig src/tests/lib/libutil/t_snprintb.c 1.20

For logs, see

  http://releng.netbsd.org/b5reports/i386/commits-2024.02.html#2024.02.16.19.53.40

This failure did not get an automated report because the test was
broken, fixed, and broken again twice in quick succession, which
caused the test framework to mistake it for a randomly failing one.

>How-To-Repeat:

Run the tests on i386.

>Fix: