multi: rename nolint:lll to nolint:ll

Find and replace all nolint instances refering to the `lll` linter and
replace with `ll` which is the name of our custom version of the `lll`
linter which can be used to ignore log lines during linting.

The next commit will do the configuration of the custom linter and
disable the default one.

lncfg/htlcswitch.go

@@ -13,7 +13,7 @@ var (
 	MaxMailboxDeliveryTimeout = 2 * time.Minute
 )
 
-//nolint:lll
+//nolint:ll
 type Htlcswitch struct {
 	MailboxDeliveryTimeout time.Duration `long:"mailboxdeliverytimeout" description:"The timeout value when delivering HTLCs to a channel link. Setting this value too small will result in local payment failures if large number of payments are sent over a short period."`
 }