multi: rename experimental endorsement signal to accountable

Renames the endorsement signal to accountable to
match the latest proposal https://github.com/lightning/blips/pull/67

htlcswitch/link_test.go

@@ -2234,18 +2234,18 @@ func newSingleLinkTestHarness(t *testing.T, chanAmt,
 		PendingCommitTicker:  ticker.New(time.Minute),
 		// Make the BatchSize and Min/MaxUpdateTimeout large enough
 		// to not trigger commit updates automatically during tests.
-		BatchSize:               10000,
-		MinUpdateTimeout:        30 * time.Minute,
-		MaxUpdateTimeout:        40 * time.Minute,
-		MaxOutgoingCltvExpiry:   DefaultMaxOutgoingCltvExpiry,
-		MaxFeeAllocation:        DefaultMaxLinkFeeAllocation,
-		NotifyActiveLink:        func(wire.OutPoint) {},
-		NotifyActiveChannel:     func(wire.OutPoint) {},
-		NotifyInactiveChannel:   func(wire.OutPoint) {},
-		NotifyInactiveLinkEvent: func(wire.OutPoint) {},
-		HtlcNotifier:            aliceSwitch.cfg.HtlcNotifier,
-		GetAliases:              getAliases,
-		ShouldFwdExpEndorsement: func() bool { return true },
+		BatchSize:                  10000,
+		MinUpdateTimeout:           30 * time.Minute,
+		MaxUpdateTimeout:           40 * time.Minute,
+		MaxOutgoingCltvExpiry:      DefaultMaxOutgoingCltvExpiry,
+		MaxFeeAllocation:           DefaultMaxLinkFeeAllocation,
+		NotifyActiveLink:           func(wire.OutPoint) {},
+		NotifyActiveChannel:        func(wire.OutPoint) {},
+		NotifyInactiveChannel:      func(wire.OutPoint) {},
+		NotifyInactiveLinkEvent:    func(wire.OutPoint) {},
+		HtlcNotifier:               aliceSwitch.cfg.HtlcNotifier,
+		GetAliases:                 getAliases,
+		ShouldFwdExpAccountability: func() bool { return true },
 	}
 
 	aliceLink := NewChannelLink(aliceCfg, aliceLc.channel)
@@ -4924,17 +4924,17 @@ func (h *persistentLinkHarness) restartLink(
 		MinUpdateTimeout: 30 * time.Minute,
 		MaxUpdateTimeout: 40 * time.Minute,
 		// Set any hodl flags requested for the new link.
-		HodlMask:                hodl.MaskFromFlags(hodlFlags...),
-		MaxOutgoingCltvExpiry:   DefaultMaxOutgoingCltvExpiry,
-		MaxFeeAllocation:        DefaultMaxLinkFeeAllocation,
-		NotifyActiveLink:        func(wire.OutPoint) {},
-		NotifyActiveChannel:     func(wire.OutPoint) {},
-		NotifyInactiveChannel:   func(wire.OutPoint) {},
-		NotifyInactiveLinkEvent: func(wire.OutPoint) {},
-		HtlcNotifier:            h.hSwitch.cfg.HtlcNotifier,
-		SyncStates:              syncStates,
-		GetAliases:              getAliases,
-		ShouldFwdExpEndorsement: func() bool { return true },
+		HodlMask:                   hodl.MaskFromFlags(hodlFlags...),
+		MaxOutgoingCltvExpiry:      DefaultMaxOutgoingCltvExpiry,
+		MaxFeeAllocation:           DefaultMaxLinkFeeAllocation,
+		NotifyActiveLink:           func(wire.OutPoint) {},
+		NotifyActiveChannel:        func(wire.OutPoint) {},
+		NotifyInactiveChannel:      func(wire.OutPoint) {},
+		NotifyInactiveLinkEvent:    func(wire.OutPoint) {},
+		HtlcNotifier:               h.hSwitch.cfg.HtlcNotifier,
+		SyncStates:                 syncStates,
+		GetAliases:                 getAliases,
+		ShouldFwdExpAccountability: func() bool { return true },
 	}
 
 	aliceLink := NewChannelLink(aliceCfg, aliceChannel)