And it looks like you added not needed "-a x16r" in COIN_OPTS too, remove it.
Read 1bash settings more thoroughly.
Your worker section should be:
GLOBAL_WORKERNAME="YES" # YES or NO # Use same workername for all coins
AUTO_WORKERNAME="CUSTOM" # HOST or MAC or CUSTOM # Use HOST IP address or network card MAC address or CUSTOM name workername
CUSTOM_WORKERNAME="RVNMiner1" # If AUTO_WORKERNAME="CUSTOM" enter your desired workername here
And RVN section:
# Raven Coin (RVN)
RVN_ADDRESS="infowire"
RVN_OPTS=""
RVN_POOL="rvn.suprnova.cc"
RVN_PORT="6666"
RVN_WORKER="$WORKERNAME"
RVN_POOL_PROTOCOL="stratum+tcp"
Let me know how it goes