github CI failures related to tzsetup

From: Yuri <yuri_at_aetern.org>
Date: Wed, 26 Apr 2023 12:03:19 UTC 
Looking at the CI jobs on github, all seem to fail in tzsetup while
making kernel-toolchain target.  Obviously this build for me locally,
FreeBSD's CI is fine with it, it's only ubuntu and macos jobs reporting
the errors, and I don't see why; any hints?

https://github.com/freebsd/freebsd-src/actions/runs/4808074516/jobs/8557602371#step:7:878

===> usr.sbin/tzsetup (obj,all,install)
/home/runner/work/freebsd-src/freebsd-src/usr.sbin/tzsetup/tzsetup.c: In
function ‘dump_zonetab’:
/home/runner/work/freebsd-src/freebsd-src/usr.sbin/tzsetup/tzsetup.c:809:12:
error: ‘countries’ undeclared (first use in this function); did you mean
‘country’?
  809 |  for (cp = countries; cp->name != NULL; cp++) {
      |            ^~~~~~~~~
      |            country