Hi, Thanks for analyzing use of pidof and fixing dependencies Debian-wide.
I also ran `grep -rF pidof *` on the mariadb source code, and there is one test file using it (binary package mariadb-test-data) and it also appears in the collumnstore source, but that is not compiled in MariaDB in Debian. The mariadb-test-data depends on mariadb-test which depends on mariadb-server, which in turn has `Pre-Depends: procps`. Hence I don't think any changes are needed for now.
