bytes -> bits typo

dns/dnsmessage/message.go

@@ -2000,15 +2000,15 @@ func (n *Name) pack(msg []byte, compression map[string]int, compressionOff int)
 			}
 
 			// Miss. Add the suffix to the compression table if the
-			// offset can be stored in the available 14 bytes.
+			// offset can be stored in the available 14 bits.
 			newPtr := len(msg) - compressionOff
 			if newPtr <= int(^uint16(0)>>2) {
 				if nameAsStr == "" {
 					// allocate n.Data on the heap once, to avoid allocating it
 					// multiple times (for next labels).
 					nameAsStr = string(n.Data[:n.Length])
 				}
-				compression[string(n.Data[i:])] = newPtr
+				compression[nameAsStr[i:]] = newPtr
 			}
 		}
 	}

dns/dnsmessage/message_test.go

@@ -1820,20 +1820,24 @@ func TestBuilderNameCompressionWithNonZeroedName(t *testing.T) {
 	if err := b.StartQuestions(); err != nil {
 		t.Fatalf("b.StartQuestions() unexpected error: %v", err)
 	}
+
 	name := MustNewName("go.dev.")
 	if err := b.Question(Question{Name: name}); err != nil {
 		t.Fatalf("b.Question() unexpected error: %v", err)
 	}
+
 	// Character that is not part of the name (name.Data[:name.Length]),
 	// shouldn't affect the compression algorithm.
 	name.Data[name.Length] = '1'
 	if err := b.Question(Question{Name: name}); err != nil {
 		t.Fatalf("b.Question() unexpected error: %v", err)
 	}
+
 	msg, err := b.Finish()
 	if err != nil {
 		t.Fatalf("b.Finish() unexpected error: %v", err)
 	}
+
 	expect := []byte{
 		0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, // header
 		2, 'g', 'o', 3, 'd', 'e', 'v', 0, 0, 0, 0, 0, // question 1