[ci skip] Add more identifying patch comments

patches/server/PlayerDeathEvent-shouldDropExperience.patch

@@ -16,4 +16,4 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +        if (event.shouldDropExperience()) this.dropExperience(); // Paper - tie to event
          // we clean the player's inventory after the EntityDeathEvent is called so plugins can get the exact state of the inventory.
          if (!event.getKeepInventory()) {
-             // Paper start - replace logic
+             // Paper start - PlayerDeathEvent#getItemsToKeep