Fix unused arg treated as error with clang
Fix unused arg treated as error with clang

mconstantin/watchdog,ymero/watchdog,gorakhargosh/watchdog,glorizen/watchdog,mconstantin/watchdog,ymero/watchdog,teleyinex/watchdog,teleyinex/watchdog,ymero/watchdog,mconstantin/watchdog,teleyinex/watchdog,gorakhargosh/watchdog,glorizen/watchdog,glorizen/watchdog