without adding `WantedBy=scylla-server.service` in
var-lib-systemd-coredump, if we starts `scylla-server.service`,
it does not necessarily starts `var-lib-systemd-coredump`
even if the latter is installed.
with `WantedBy=scylla-server.service` in var-lib-systemd-coredump,
if we starts `scylla-server.service`, var-lib-systemd-coredump
will be started also. and `Before=scylla-server.service` ensures
that, before `scylla-server.service` is started,
var-lib-systemd-coredump is already ready.
Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>
Closesscylladb/scylladb#15984