ArduCopter: adjust for AP_Mission logging mission-item-starts

ArduCopter/mode_auto.cpp

@@ -671,13 +671,6 @@ bool ModeAuto::set_speed_down(float speed_down_cms)
 // start_command - this function will be called when the ap_mission lib wishes to start a new command
 bool ModeAuto::start_command(const AP_Mission::Mission_Command& cmd)
 {
-#if HAL_LOGGING_ENABLED
-    // To-Do: logging when new commands start/end
-    if (copter.should_log(MASK_LOG_CMD)) {
-        copter.logger.Write_Mission_Cmd(mission, cmd);
-    }
-#endif
-
     switch(cmd.id) {
 
     ///

ArduCopter/system.cpp

@@ -160,6 +160,9 @@ void Copter::init_ardupilot()
 #if MODE_AUTO_ENABLED
     // initialise mission library
     mode_auto.mission.init();
+#if HAL_LOGGING_ENABLED
+    mode_auto.mission.set_log_start_mission_item_bit(MASK_LOG_CMD);
+#endif
 #endif
 
 #if MODE_SMARTRTL_ENABLED