[PATCH] t/lib-gpg: fix ssh-keygen -Y check-novalidate with openssh-9.0

OpenSSH-9.0 requires a namespace option with `-Y check-novalidate`. This was added in openssh-portable commit a0b5816f8 (upstream: ssh-keygen -Y check-novalidate requires namespace or SEGV, 2022-03-18).

The -n option was documented as a required option since check-novalidate was added in openssh-portable 8aa2aa3cd (upstream: Allow testing signature syntax and validity without verifying, 2019-09-16).

Signed-off-by: Todd Zullinger <tmz@pobox.com>
---
Hi,

I only recently noticed the GPGSSH_VERIFYTIME prereq had been failing in the Fedora builds. This began when openssh was updated to 9.0 in the distribution, which means I've been slack on checking missing prereqs since last August. :/

Initially, I thought it was another issue, where the final ssh-keygen call in the prereq lacked a message on stdin, which caused it to hang.

That only occurs when running the contents of the prereq manually, so it may not be worth touching. But if that seems worthwhile -- if only to avoid anyone else getting spending time debugging the wrong problem -- I can send the patch I had prepared which does:

  diff --git a/t/lib-gpg.sh b/t/lib-gpg.sh
  index 114785586a..2815df8503 100644
  --- a/t/lib-gpg.sh
  +++ b/t/lib-gpg.sh
  @@ -165,7 +165,7 @@ test_lazy_prereq GPGSSH_VERIFYTIME '
   	# and verify ssh-keygen verifies the key lifetime
   	echo "testpayload" |
   	ssh-keygen -Y sign -n "git" -f "${GPGSSH_KEY_EXPIRED}" >gpgssh_verifytime_prereq.sig &&
  -	! (ssh-keygen -Y verify -n "git" -f "${GPGSSH_ALLOWED_SIGNERS}" -I "principal with expired key" -s gpgssh_verifytime_prereq.sig)
  +	! (echo "testpayload" | ssh-keygen -Y verify -n "git" -f "${GPGSSH_ALLOWED_SIGNERS}" -I "principal with expired key" -s gpgssh_verifytime_prereq.sig)
   '
   
   sanitize_pgp() {

 t/lib-gpg.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)