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.

itest/lnd_max_htlcs_test.go

@@ -114,7 +114,7 @@ func (h *holdSubscription) cancel(ht *lntest.HarnessTest) {
 	)
 	require.Equal(ht, lnrpc.Payment_FAILED, payUpdate.Status,
 		"expected payment failed")
-	require.Equal(ht, lnrpc.PaymentFailureReason_FAILURE_REASON_INCORRECT_PAYMENT_DETAILS, //nolint:lll
+	require.Equal(ht, lnrpc.PaymentFailureReason_FAILURE_REASON_INCORRECT_PAYMENT_DETAILS, //nolint:ll
 		payUpdate.FailureReason, "expected unknown details")
 }