Description of problem:
This is a fairly minor gripe... since lvmdevices is just a system.devices file editor, and if we're going to support the --test flag with it, then the current message of "TEST MODE: Metadata will NOT be updated and volumes will not be (de)activated." doesn't really apply to this command. Something more along the lines of "TEST MODE: system.devices file will not be altered" would be more appropriate.

[root@grant-01 ~]# lvmdevices --test --deldev /dev/sdg1
TEST MODE: Metadata will NOT be updated and volumes will not be (de)activated.
[root@grant-01 ~]# lvmdevices --test --adddev /dev/sdg1
TEST MODE: Metadata will NOT be updated and volumes will not be (de)activated.

Version-Release number of selected component (if applicable):
lvm2-2.03.21-1.el9 BUILT: Fri Apr 21 02:33:33 PM CEST 2023
lvm2-libs-2.03.21-1.el9 BUILT: Fri Apr 21 02:33:33 PM CEST 2023