doc: upgrade to BOLTs 341ec844f13c0c0abc4fe849059fbb98173f9766

This is a slightly looser behavior, so no change needed.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Makefile

@@ -23,7 +23,7 @@ CCANDIR := ccan
 
 # Where we keep the BOLT RFCs
 BOLTDIR := ../bolts/
-DEFAULT_BOLTVERSION := 2ecc091f3484f7a3450e7f5543ae851edd1e0761
+DEFAULT_BOLTVERSION := 341ec844f13c0c0abc4fe849059fbb98173f9766
 # Can be overridden on cmdline.
 BOLTVERSION := $(DEFAULT_BOLTVERSION)
 

channeld/channeld.c

@@ -1254,8 +1254,9 @@ static void send_commit(struct peer *peer)
 
 	/* BOLT #2:
 	 *
-	 *   - if no HTLCs remain in either commitment transaction:
-	 *	- MUST NOT send any `update` message after a `shutdown`.
+	 *   - if no HTLCs remain in either commitment transaction (including dust HTLCs)
+	 *     and neither side has a pending `revoke_and_ack` to send:
+	 *	- MUST NOT send any `update` message after that point.
 	 */
 	if (peer->shutdown_sent[LOCAL] && !num_channel_htlcs(peer->channel)) {
 		status_debug("Can't send commit: final shutdown phase");