feature+lncfg: restore simple- prefix for taproot chans arg

lncfg/protocol.go

@@ -24,7 +24,7 @@ type ProtocolOptions struct {
 
 	// TaprootChans should be set if we want to enable support for the
 	// experimental simple taproot chans commitment type.
-	TaprootChans bool `long:"taproot-chans" description:"if set, then lnd will create and accept requests for channels using the simple taproot commitment type"`
+	TaprootChans bool `long:"simple-taproot-chans" description:"if set, then lnd will create and accept requests for channels using the simple taproot commitment type"`
 
 	// NoAnchors should be set if we don't want to support opening or accepting
 	// channels having the anchor commitment type.

lncfg/protocol_integration.go

@@ -26,7 +26,7 @@ type ProtocolOptions struct {
 
 	// TaprootChans should be set if we want to enable support for the
 	// experimental simple taproot chans commitment type.
-	TaprootChans bool `long:"taproot-chans" description:"if set, then lnd will create and accept requests for channels using the simple taproot commitment type"`
+	TaprootChans bool `long:"simple-taproot-chans" description:"if set, then lnd will create and accept requests for channels using the simple taproot commitment type"`
 
 	// Anchors enables anchor commitments.
 	// TODO(halseth): transition itests to anchors instead!