multi: rename key_send, key-send and key send to keysend

config.go

@@ -326,7 +326,7 @@ type config struct {
 
 	EnableUpfrontShutdown bool `long:"enable-upfront-shutdown" description:"If true, option upfront shutdown script will be enabled. If peers that we open channels with support this feature, we will automatically set the script to which cooperative closes should be paid out to on channel open. This offers the partial protection of a channel peer disconnecting from us if cooperative close is attempted with a different script."`
 
-	AcceptKeySend bool `long:"accept-key-send" description:"If true, spontaneous payments through key send will be accepted. [experimental]"`
+	AcceptKeySend bool `long:"accept-keysend" description:"If true, spontaneous payments through keysend will be accepted. [experimental]"`
 
 	Routing *routing.Conf `group:"routing" namespace:"routing"`