[Feature Request] should be possible to disable "No passphrase was given, sensitive fields will be in plaintext" message in document_exporter

Description

document_exporter just started printing the message "No passphrase was given, sensitive fields will be in plaintext" every time it is run out of my /etc/cron.daily backup job. I haven't changed anything as far as I know on my end, so either this message was just added, or I guess maybe something has changed in my _data_ such that there are now "sensitive fields" to export when they're weren't before? I don't know.
All I know is that I don't need to receive a message from crond every day telling me that the backup generated this message. Seeing it once was sufficient. Now I would like to go back to the status quo prior to today: the job runs silently unless it fails.
But there is apparently no way to suppress this message. --verbosity=0 doesn't do it. This is not ideal.

Other

_No response_