issue: poudriere jail update fails after recent changes around certctl

From: Alexander Leidinger <Alexander_at_Leidinger.net>
Date: Fri, 13 Oct 2023 08:03:10 UTC
Hi,

some change around certctl (world from 2023-10-09) has broken the 
poudriere jail update command. The complete install finishes, certctl is 
run, and then there is an exit code 1. This is because I have some certs 
listed as untrusted, and this seems to give a retval of 1 inside 
certctl.

Testcase: set a cert as untrusted and try to use "poudriere jail -u -j 
YOUR_JAIL_NAME -m src=/usr/src"

Relevant log:
---snip---
--------------------------------------------------------------
>>> Installing everything completed on Fri Oct 13 10:00:04 CEST 2023
--------------------------------------------------------------
        83.55 real       103.83 user       109.42 sys
certctl.sh: Skipping untrusted certificate ad088e1d 
(/space/poudriere/jails/poudriere-x11/etc/ssl/untrusted/ad088e1d.0)
[some more untrusted]
*** [installworld] Error code 1

make[1]: stopped in /space/system/usr_src
1 error

make[1]: stopped in /space/system/usr_src

make: stopped in /usr/src
[00:01:32] Error: Failed to 'make installworld'
---snip---

Bye,
Alexander.

-- 
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