f update docs as jeff requested

Author: TheBlueMatt

lightning/src/ln/channelmanager.rs

@@ -523,7 +523,7 @@ pub const BREAKDOWN_TIMEOUT: u16 = 6 * 24;
 pub(crate) const MAX_LOCAL_BREAKDOWN_TIMEOUT: u16 = 2 * 6 * 24 * 7;
 
 /// The minimum number of blocks between an inbound HTLC's CLTV and the corresponding outbound
-/// HTLC's CLTV.
+/// HTLC's CLTV. The current default represents roughly six hours of blocks at six blocks/hour.
 ///
 /// This can be increased (but not decreased) through [`ChannelConfig::cltv_expiry_delta`]
 ///

lightning/src/util/config.rs

@@ -173,8 +173,8 @@ pub struct ChannelConfig {
 	/// we (or one of our watchtowers) MUST be online to check for broadcast of the current
 	/// commitment transaction at least once per this many blocks.
 	///
-	/// Default value: [`MIN_CLTV_EXPIRY_DELTA`] (currently 36), which we enforce as a minimum so
-	/// you can change the config to ask for more security, not less.
+	/// Default value: [`MIN_CLTV_EXPIRY_DELTA`], which we enforce as a minimum so you can change
+	/// the config to ask for more security, not less.
 	pub cltv_expiry_delta: u16,
 	/// Set to announce the channel publicly and notify all nodes that they can route via this
 	/// channel.