go fmt and line nr tweak

scanner.go

@@ -1,4 +1,5 @@
 package dns
+
 // Implement a simple scanner, return a byte stream from an io reader.
 
 import (
@@ -15,6 +16,7 @@ type scan struct {
 func scanInit(r io.Reader) *scan {
 	s := new(scan)
 	s.src = bufio.NewReader(r)
+	s.position.Line = 1
 	return s
 }