Fix Makefile. (.json rule renamed .manual)
Fix Makefile. (.json rule renamed .manual)

aaronsw/watchdog,MjAbuz/watchdog,ferranti/watchdog,ferranti/watchdog,MjAbuz/watchdog,ferranti/watchdog,aaronsw/watchdog,ferranti/watchdog,MjAbuz/watchdog,aaronsw/watchdog,MjAbuz/watchdog