Indent tool_change_prime

Marlin/src/module/tool_change.cpp

@@ -793,7 +793,7 @@ inline void fast_line_to_current(const AxisEnum fr_axis) { _line_to_current(fr_a
  */
 #if ENABLED(TOOLCHANGE_FILAMENT_SWAP)
 
-void tool_change_prime() {
+  void tool_change_prime() {
     if (toolchange_settings.extra_prime > 0
       && TERN(PREVENT_COLD_EXTRUSION, !thermalManager.targetTooColdToExtrude(active_extruder), 1)
     ) {
@@ -860,8 +860,9 @@ void tool_change_prime() {
       current_position.e = destination.e;
       sync_plan_position_e(); // Resume at the old E position
     }
-}
-#endif
+  }
+
+#endif // TOOLCHANGE_FILAMENT_SWAP
 
 /**
  * Perform a tool-change, which may result in moving the