lntest: move debug flag, disable spammy libevent

lntest/bitcoind.go

@@ -13,7 +13,6 @@ func NewBackend(miner string, netParams *chaincfg.Params) (
 	*BitcoindBackendConfig, func() error, error) {
 
 	extraArgs := []string{
-		"-debug",
 		"-regtest",
 		"-txindex",
 		"-disablewallet",

lntest/bitcoind_common.go

@@ -126,6 +126,8 @@ func newBackend(miner string, netParams *chaincfg.Params, extraArgs []string,
 		fmt.Sprintf("-port=%d", p2pPort),
 		"-zmqpubrawblock=" + zmqBlockAddr,
 		"-zmqpubrawtx=" + zmqTxAddr,
+		"-debug",
+		"-debugexclude=libevent",
 		"-debuglogfile=" + logFile,
 	}
 	cmdArgs = append(cmdArgs, extraArgs...)

lntest/bitcoind_notxindex.go

@@ -13,7 +13,6 @@ func NewBackend(miner string, netParams *chaincfg.Params) (
 	*BitcoindBackendConfig, func() error, error) {
 
 	extraArgs := []string{
-		"-debug",
 		"-regtest",
 		"-disablewallet",
 	}

lntest/bitcoind_rpcpolling.go

@@ -13,7 +13,6 @@ func NewBackend(miner string, netParams *chaincfg.Params) (
 	*BitcoindBackendConfig, func() error, error) {
 
 	extraArgs := []string{
-		"-debug",
 		"-regtest",
 		"-txindex",
 		"-disablewallet",