Tracker: Unify from print or println to printf.

AntennaTracker/Parameters.cpp

@@ -390,12 +390,12 @@ void Tracker::load_parameters(void)
         g.format_version != Parameters::k_format_version) {
 
         // erase all parameters
-        hal.console->println("Firmware change: erasing EEPROM...");
+        hal.console->printf("Firmware change: erasing EEPROM...\n");
         AP_Param::erase_all();
 
         // save the current format version
         g.format_version.set_and_save(Parameters::k_format_version);
-        hal.console->println("done.");
+        hal.console->printf("done.\n");
     }
 
     uint32_t before = AP_HAL::micros();

AntennaTracker/system.cpp

@@ -68,7 +68,7 @@ void Tracker::init_tracker()
 
     if (g.compass_enabled==true) {
         if (!compass.init() || !compass.read()) {
-            hal.console->println("Compass initialisation failed!");
+            hal.console->printf("Compass initialisation failed!\n");
             g.compass_enabled = false;
         } else {
             ahrs.set_compass(&compass);