[Trivial] Cryptocurrency is one word

Cryptocurrency was added to Oxford Dictionaries Online in May 2014.

contrib/init/bitcoind.openrc

@@ -19,7 +19,7 @@ BITCOIND_NICE=${BITCOIND_NICE:-${NICELEVEL:-0}}
 BITCOIND_OPTS="${BITCOIND_OPTS:-${BITCOIN_OPTS}}"
 
 name="Bitcoin Core Daemon"
-description="Bitcoin crypto-currency p2p network daemon"
+description="Bitcoin cryptocurrency p2p network daemon"
 
 command="/usr/bin/bitcoind"
 command_args="-pid=\"${BITCOIND_PIDFILE}\" \