fix unclosed conditional

Author: lilyuwuu

finalize_helper.gm9

@@ -85,6 +85,7 @@ if not sha 0:/finalize.romfs FINALIZE_SHA256SUM
         set PREVIEW_MODE "Finalizing Setup Helper Script\n> Copying SD files... :("
         echo "Error #26: Failed to checksum finalize.romfs\n \nThe file checksum process failed.\nYour SD card may be faulty or illegitimate.
         poweroff
+    end
 else
     imgmount 0:/finalize.romfs
     cp -w -o -s G:/finalize/GodMode9.firm 0:/luma/payloads/GodMode9.firm