s3:rpc_server: call reopen_logs before we print the copyright notice

s3:rpc_server: call reopen_logs before we print the copyright notice

This matches what we do in smbd, winbindd and nmbd.

For the workers it's important to call it at all, otherwise
things like 'debug pid = yes' or 'debug class = yes' have no effect
in the workers.

We could argue if we want the copyright notice on the start
of each worker at all, but that's a different discussion...

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>