fix comment typos

Author: gaissmai

conversion.go

@@ -57,7 +57,7 @@ func (a *addr) is4() bool {
 //
 // Precondition: a is a valid IP address.
 func unwrap(a netip.Addr) (b addr) {
-	ip := a.AsSlice() // nil if is a isn't valid!
+	ip := a.AsSlice() // nil if a isn't valid!
 
 	if len(ip) == 4 {
 		b.v4 = true

extnetip.go

@@ -149,7 +149,7 @@ func allRec(a, b addr, yield func(netip.Prefix) bool) bool {
 	// Range doesn't match a single CIDR - split it in half
 	mask := mask6(bits + 1)                                // Mask for one bit longer prefix
 	leftUpper := fromUint128(a.ip.or(mask.not()), a.is4()) // Left half upper bound
-	rightLower := fromUint128(b.ip.and(mask), a.is4())     // // Right half lower bound
+	rightLower := fromUint128(b.ip.and(mask), a.is4())     // Right half lower bound
 
 	// Recursively process both halves
 	return allRec(a, leftUpper, yield) && allRec(rightLower, b, yield)