Tracker: Change the process for errors

AntennaTracker/sensors.cpp

@@ -51,9 +51,7 @@ void Tracker::update_GPS(void)
                 // Now have an initial GPS position
                 // use it as the HOME position in future startups
                 current_loc = gps.location();
-                if (!set_home(current_loc)) {
-                    // silently ignored
-                }
+                IGNORE_RETURN(set_home(current_loc));
                 ground_start_count = 0;
             }
         }