Update src/activity_handlers.cpp

Co-authored-by: mqrause <[email protected]>

src/activity_handlers.cpp

@@ -1395,7 +1395,7 @@ void activity_handlers::butcher_finish( player_activity *act, Character *you )
     you->recoil = MAX_RECOIL;
 
     get_event_bus().send<event_type::character_butchered_corpse>( you->getID(),
-            corpse_item.get_mtype()->id, ( std::string )act->id() );
+            corpse_item.get_mtype()->id, act->id().str() );
 
     // Ready to move on to the next item, if there is one (for example if multibutchering)
     act->index = true;