Augment debug/homing logging

Marlin/Marlin_main.cpp

 static void set_axis_is_at_home(AxisEnum axis) {
   #if ENABLED(DEBUG_LEVELING_FEATURE)
     if (DEBUGGING(LEVELING)) {
-      SERIAL_ECHOPAIR(">>> set_axis_is_at_home(", axis);
+      SERIAL_ECHOPAIR(">>> set_axis_is_at_home(", axis_codes[axis]);
       SERIAL_ECHOLNPGM(")");
     }
   #endif
   }
   #if ENABLED(DEBUG_LEVELING_FEATURE)
     if (DEBUGGING(LEVELING)) {
-      SERIAL_ECHOPAIR("<<< set_axis_is_at_home(", axis);
+      SERIAL_ECHOPAIR("<<< set_axis_is_at_home(", axis_codes[axis]);
       SERIAL_ECHOLNPGM(")");
     }
   #endif
   // at the height where the probe triggered.
   static float run_z_probe() {
 
+    #if ENABLED(DEBUG_LEVELING_FEATURE)
+      if (DEBUGGING(LEVELING)) DEBUG_POS(">>> run_z_probe", current_position);
+    #endif
+
     // Prevent stepper_inactive_time from running out and EXTRUDER_RUNOUT_PREVENT from extruding
     refresh_cmd_timeout();
 
     SYNC_PLAN_POSITION_KINEMATIC();
 
     #if ENABLED(DEBUG_LEVELING_FEATURE)
-      if (DEBUGGING(LEVELING)) DEBUG_POS("run_z_probe", current_position);
+      if (DEBUGGING(LEVELING)) DEBUG_POS("<<< run_z_probe", current_position);
     #endif
 
     return current_position[Z_AXIS];
 
   #if ENABLED(DEBUG_LEVELING_FEATURE)
     if (DEBUGGING(LEVELING)) {
-      SERIAL_ECHOPAIR(">>> homeaxis(", axis);
+      SERIAL_ECHOPAIR(">>> homeaxis(", axis_codes[axis]);
       SERIAL_ECHOLNPGM(")");
     }
   #endif
 
   #if ENABLED(DEBUG_LEVELING_FEATURE)
     if (DEBUGGING(LEVELING)) {
-      SERIAL_ECHOPAIR("<<< homeaxis(", axis);
+      SERIAL_ECHOPAIR("<<< homeaxis(", axis_codes[axis]);
       SERIAL_ECHOLNPGM(")");
     }
   #endif