trivial: Fix spelling errors

- Fixes some spelling in code comments and a couple of function names

lnwire/onion_error.go

@@ -589,14 +589,14 @@ func (f *FailInvalidOnionKey) Error() string {
 	return fmt.Sprintf("InvalidOnionKey(onion_sha=%x)", f.OnionSHA256[:])
 }
 
-// parseChannelUpdateCompatabilityMode will attempt to parse a channel updated
+// parseChannelUpdateCompatibilityMode will attempt to parse a channel updated
 // encoded into an onion error payload in two ways. First, we'll try the
 // compatibility oriented version wherein we'll _skip_ the length prefixing on
 // the channel update message. Older versions of c-lighting do this so we'll
 // attempt to parse these messages in order to retain compatibility. If we're
 // unable to pull out a fully valid version, then we'll fall back to the
 // regular parsing mechanism which includes the length prefix an NO type byte.
-func parseChannelUpdateCompatabilityMode(reader io.Reader, length uint16,
+func parseChannelUpdateCompatibilityMode(reader io.Reader, length uint16,
 	chanUpdate *ChannelUpdate, pver uint32) error {
 
 	// Instantiate a LimitReader because there may be additional data
@@ -683,7 +683,8 @@ func (f *FailTemporaryChannelFailure) Decode(r io.Reader, pver uint32) error {
 
 	if length != 0 {
 		f.Update = &ChannelUpdate{}
-		return parseChannelUpdateCompatabilityMode(
+
+		return parseChannelUpdateCompatibilityMode(
 			r, length, f.Update, pver,
 		)
 	}
@@ -767,7 +768,8 @@ func (f *FailAmountBelowMinimum) Decode(r io.Reader, pver uint32) error {
 	}
 
 	f.Update = ChannelUpdate{}
-	return parseChannelUpdateCompatabilityMode(
+
+	return parseChannelUpdateCompatibilityMode(
 		r, length, &f.Update, pver,
 	)
 }
@@ -835,7 +837,8 @@ func (f *FailFeeInsufficient) Decode(r io.Reader, pver uint32) error {
 	}
 
 	f.Update = ChannelUpdate{}
-	return parseChannelUpdateCompatabilityMode(
+
+	return parseChannelUpdateCompatibilityMode(
 		r, length, &f.Update, pver,
 	)
 }
@@ -903,7 +906,8 @@ func (f *FailIncorrectCltvExpiry) Decode(r io.Reader, pver uint32) error {
 	}
 
 	f.Update = ChannelUpdate{}
-	return parseChannelUpdateCompatabilityMode(
+
+	return parseChannelUpdateCompatibilityMode(
 		r, length, &f.Update, pver,
 	)
 }
@@ -960,7 +964,8 @@ func (f *FailExpiryTooSoon) Decode(r io.Reader, pver uint32) error {
 	}
 
 	f.Update = ChannelUpdate{}
-	return parseChannelUpdateCompatabilityMode(
+
+	return parseChannelUpdateCompatibilityMode(
 		r, length, &f.Update, pver,
 	)
 }
@@ -1024,7 +1029,8 @@ func (f *FailChannelDisabled) Decode(r io.Reader, pver uint32) error {
 	}
 
 	f.Update = ChannelUpdate{}
-	return parseChannelUpdateCompatabilityMode(
+
+	return parseChannelUpdateCompatibilityMode(
 		r, length, &f.Update, pver,
 	)
 }