message: contrib/init: (OpenRC) Do not fail if both rpcuser and rpcpassword are unset.
  This implies the .cookie file shall be used for RPC and having _both_ unset
  in bitcoin.conf should allow bitcoind to start.
diff: @@ -69,7 +69,8 @@ start_pre() {
  checkconfig()
  {
  - if ! grep -qs '^rpcpassword=' "${BITCOIND_CONFIGFILE}" ; then
  + if grep -qs '^rpcuser=' "${BITCOIND_CONFIGFILE}" && \
  + ! grep -qs '^rpcpassword=' "${BITCOIND_CONFIGFILE}" ; then
  eerror ""
  eerror "ERROR: You must set a secure rpcpassword to run bitcoind."
  eerror "The setting must appear in ${BITCOIND_CONFIGFILE}"
  