[systemd-devel] service.d/.conf files and multi-valued options

[Igor Bukanov]

It is not clear from the systemd.unit manual page what happens when
foo.service.d/bar.conf sets an option like Service/ExecStartPre that
can be specified multiple times. From experimenting I see that *.conf
files supply additional values to the option and to overwrite or
remove already given values for the option one have to copy the whole
file into /etc and edit it there. Is it so?