general: fix typos, rename variables, add comments

lnwallet/channel.go

@@ -1014,7 +1014,7 @@ func (lc *LightningChannel) evaluateHTLCView(view *htlcView, ourBalance,
 
 // processAddEntry evaluates the effect of an add entry within the HTLC log.
 // If the HTLC hasn't yet been committed in either chain, then the height it
-// was commited is updated. Keeping track of this inclusion height allows us to
+// was committed is updated. Keeping track of this inclusion height allows us to
 // later compact the log once the change is fully committed in both chains.
 func processAddEntry(htlc *PaymentDescriptor, ourBalance, theirBalance *btcutil.Amount,
 	nextHeight uint64, remoteChain bool, isIncoming bool) {
@@ -1165,7 +1165,7 @@ func (lc *LightningChannel) SignNextCommitment() ([]byte, uint32, error) {
 // the remote party. This method will should be called in response to the
 // remote party initiating a new change, or when the remote party sends a
 // signature fully accepting a new state we've initiated. If we are able to
-// succesfully validate the signature, then the generated commitment is added
+// successfully validate the signature, then the generated commitment is added
 // to our local commitment chain. Once we send a revocation for our prior
 // state, then this newly added commitment becomes our current accepted channel
 // state.
@@ -1992,7 +1992,7 @@ func CreateCommitTx(fundingOutput *wire.TxIn, selfKey, theirKey *btcec.PublicKey
 	}
 
 	// Next, we create the script paying to them. This is just a regular
-	// P2WKH output, without any added CSV delay.
+	// P2WPKH output, without any added CSV delay.
 	theirWitnessKeyHash, err := commitScriptUnencumbered(theirKey)
 	if err != nil {
 		return nil, err

lnwallet/channel_test.go

@@ -135,7 +135,7 @@ func initRevocationWindows(chanA, chanB *LightningChannel, windowSize int) error
 	return nil
 }
 
-// forceStateTransition executes the neccessary interaction between the two
+// forceStateTransition executes the necessary interaction between the two
 // commitment state machines to transition to a new state locking in any
 // pending updates.
 func forceStateTransition(chanA, chanB *LightningChannel) error {
@@ -320,7 +320,7 @@ func createTestChannels(revocationWindow int) (*LightningChannel, *LightningChan
 // TestSimpleAddSettleWorkflow tests a simple channel scenario wherein the
 // local node (Alice in this case) creates a new outgoing HTLC to bob, commits
 // this change, then bob immediately commits a settlement of the HTLC after the
-// initial add is fully commited in both commit chains.
+// initial add is fully committed in both commit chains.
 // TODO(roasbeef): write higher level framework to exercise various states of
 // the state machine
 //  * DSL language perhaps?
@@ -389,7 +389,7 @@ func TestSimpleAddSettleWorkflow(t *testing.T) {
 	}
 	// Alice then processes this revocation, sending her own recovation for
 	// her prior commitment transaction. Alice shouldn't have any HTLC's to
-	// forward since she's sending anoutgoing HTLC.
+	// forward since she's sending an outgoing HTLC.
 	if htlcs, err := aliceChannel.ReceiveRevocation(bobRevocation); err != nil {
 		t.Fatalf("alice unable to rocess bob's revocation: %v", err)
 	} else if len(htlcs) != 0 {
@@ -441,7 +441,7 @@ func TestSimpleAddSettleWorkflow(t *testing.T) {
 	}
 
 	// Alice's revocation window should now be one beyond the size of the
-	// intial window. Same goes for Bob.
+	// initial window. Same goes for Bob.
 	if aliceChannel.revocationWindowEdge != 4 {
 		t.Fatalf("alice revocation window not incremented, is %v should be %v",
 			aliceChannel.revocationWindowEdge, 4)

lnwallet/script_utils.go

@@ -340,7 +340,7 @@ func senderHtlcSpendTimeout(commitScript []byte, outputAmt btcutil.Amount,
 //
 // Possible Input Scripts:
 //    RECVR: <sig> <preimage> 1
-//    REVOK: <sig> <preimage> 1 0
+//    REVOK: <sig> <preimage> 0 1
 //    SENDR: <sig> 0 0
 //
 // OP_IF
@@ -358,7 +358,7 @@ func senderHtlcSpendTimeout(commitScript []byte, outputAmt btcutil.Amount,
 // 	<revoke hash> OP_EQUALVERIFY
 //     OP_ELSE
 // 	//Refund
-// 	<absolute blockehight> OP_CHECKLOCKTIMEVERIFY OP_DROP
+// 	<absolute blockheight> OP_CHECKLOCKTIMEVERIFY OP_DROP
 //     OP_ENDIF
 //     <sender key> OP_CHECKSIG
 // OP_ENDIF