It is quite conventional in the UNIX world to return 128 + signal code upon exit due to a signal, so I'd suggest TrapSignal() call os.Exit(128 + int($signalcode)) instead of os.Exit(1)

Tendermint version: develop

ABCI app: Gaia

Environment: Ubuntu 18.04

CC'ing @jaekwon, who appears to be the original author of the function.