What were you trying to do that didn't work?

Processing /var/log/secure sudo logs. 

What is the impact of this issue to you?

This change/regression breaks log processing.

Please provide the package NVR for which the bug is seen:

sudo-1.9.5p2-1.el8_9.x86_64

How reproducible is this bug?:

Always

Steps to reproduce

1. # sudo --preserve-env=HOME,PATH sleep .1
2. # journalctl -f
3. CTRL-C

Expected results

Dec 19 17:09:28 r810 sudo[6537]:     root : TTY=pts/0 ; PWD=/root ; USER=root ; ENV=HOME=/root PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin ; COMMAND=/bin/sleep .1

Actual results

Dec 19 17:07:58 r810 sudo[6494]:     root : TTY=pts/0 ; PWD=/root ; USER=root ; ENV=HOME=/root PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/binCOMMAND=/bin/sleep .1

Additional information

downgrading to package sudo-1.8.29-10.el8.x86_64 does show the expected results which is a "<space><semicolon>" between ENV= and COMMAND= fields.