Adjust spacing in Marlin_main.cpp and stepper.*

Marlin/stepper.h

@@ -67,9 +67,9 @@ void st_set_e_position(const long &e);
 long st_get_position(uint8_t axis);
 
 #ifdef ENABLE_AUTO_BED_LEVELING
-// Get current position in mm
-float st_get_position_mm(uint8_t axis);
-#endif  //ENABLE_AUTO_BED_LEVELING
+  // Get current position in mm
+  float st_get_position_mm(AxisEnum axis);
+#endif
 
 // The stepper subsystem goes to sleep when it runs out of things to execute. Call this
 // to notify the subsystem that it is time to go to work.