Did you check that there isn't any other location? I quickly checked if there is a Include-Server-Commands file or similar, but there isn't.

(I might run the grep later on)

In jamulussoftware/jamuluswebsite it should all be covered. My original grep / sed had not limited to src - I'd also included the po files:

 sed -i -e 's/--directoryserver/--directoryaddress/g' $(grep -lr -- --directoryserver)

The grep should have been grep -lr -- --directoryserver | grep -v '/po/\|^\.git'.

I quickly checked if there is a Include-Server-Commands file or similar, but there isn't.

It should be removed from the po file directories - I wasn't aware that this file didn't exist in wiki/en any more. It's not on Weblate so no harm done.