multi: skip checking long lines for config files

lncfg/protocol_legacy_on.go

@@ -6,6 +6,8 @@ package lncfg
 // Legacy is a sub-config that houses all the legacy protocol options.  These
 // are mostly used for integration tests as most modern nodes should always run
 // with them on by default.
+//
+// nolint:lll
 type LegacyProtocol struct {
 	// LegacyOnionFormat if set to true, then we won't signal
 	// TLVOnionPayloadOptional. As a result, nodes that include us in the