Ensure pid belongs to ovsdb-server in ovn-ctl

When checking if ovsdb-server is running, ensure that the binary
we are going to run matches the one actually running with the the
pid that was in our pidfile.

Signed-off-by: Terry Wilson <twilson@redhat.com>
Signed-off-by: Mark Michelson <mmichels@redhat.com>
Acked-by: Ihar Hrachyshka <ihrachys@redhat.com>
Acked-by: Mark Michelson <mmichels@redhat.com>

utilities/ovn-ctl

@@ -200,7 +200,7 @@ start_ovsdb__() {
     ovn_install_dir "$ovn_etcdir"
 
     # Check and eventually start ovsdb-server for DB
-    if pidfile_is_running $db_pid_file; then
+    if pidfile_is_running $db_pid_file ovsdb-server; then
         return
     fi