Plane: fix format string warnings

ArduPlane/ArduPlane.cpp

@@ -532,7 +532,7 @@ void Plane::set_flight_stage(AP_Vehicle::FixedWing::FlightStage fs)
 
     if (fs == AP_Vehicle::FixedWing::FLIGHT_ABORT_LAND) {
         gcs().send_text(MAV_SEVERITY_NOTICE, "Landing aborted, climbing to %dm",
-                          auto_state.takeoff_altitude_rel_cm/100);
+                        int(auto_state.takeoff_altitude_rel_cm/100));
     }
 
     flight_stage = fs;

ArduPlane/commands_logic.cpp

@@ -528,8 +528,8 @@ bool Plane::verify_takeoff()
             float takeoff_course = wrap_PI(radians(gps.ground_course_cd()*0.01f)) - steer_state.locked_course_err;
             takeoff_course = wrap_PI(takeoff_course);
             steer_state.hold_course_cd = wrap_360_cd(degrees(takeoff_course)*100);
-            gcs().send_text(MAV_SEVERITY_INFO, "Holding course %ld at %.1fm/s (%.1f)",
-                              steer_state.hold_course_cd,
+            gcs().send_text(MAV_SEVERITY_INFO, "Holding course %d at %.1fm/s (%.1f)",
+                              (int)steer_state.hold_course_cd,
                               (double)gps.ground_speed(),
                               (double)degrees(steer_state.locked_course_err));
         }
@@ -741,7 +741,7 @@ bool Plane::verify_loiter_to_alt(const AP_Mission::Mission_Command &cmd)
         if (labs(loiter.sum_cd) > 1 && (loiter.reached_target_alt || loiter.unable_to_acheive_target_alt)) {
             // primary goal completed, initialize secondary heading goal
             if (loiter.unable_to_acheive_target_alt) {
-                gcs().send_text(MAV_SEVERITY_INFO,"Loiter to alt was stuck at %d", current_loc.alt/100);
+                gcs().send_text(MAV_SEVERITY_INFO,"Loiter to alt was stuck at %d", int(current_loc.alt/100));
             }
 
             condition_value = 1;

ArduPlane/takeoff.cpp

@@ -210,7 +210,7 @@ int16_t Plane::get_takeoff_pitch_min_cd(void)
                 relative_alt_cm >= 1000 &&
                 sec_to_target <= g.takeoff_pitch_limit_reduction_sec) {
                 // make a note of that altitude to use it as a start height for scaling
-                gcs().send_text(MAV_SEVERITY_INFO, "Takeoff level-off starting at %dm", remaining_height_to_target_cm/100);
+                gcs().send_text(MAV_SEVERITY_INFO, "Takeoff level-off starting at %dm", int(remaining_height_to_target_cm/100));
                 auto_state.height_below_takeoff_to_level_off_cm = remaining_height_to_target_cm;
             }
         }