go/scanner: update comment

R=r, r2
CC=golang-dev
https://golang.org/cl/4184053

diff --git a/src/pkg/go/scanner/scanner.go b/src/pkg/go/scanner/scanner.go
index 8c3205230e84afdf0f6a135250310a1f98ec4a3d..2ae296b3f1595dbafd42590380725a4fa77b2d78 100644 (file)
--- a/src/pkg/go/scanner/scanner.go
+++ b/src/pkg/go/scanner/scanner.go
@@ -8,7 +8,8 @@
 //
 //     var s Scanner
 //     fset := token.NewFileSet()  // position information is relative to fset
-//     s.Init(fset, filename, src, nil /* no error handler */, 0)
+//      file := fset.AddFile(filename, fset.Base(), len(src))  // register file
+//     s.Init(file, src, nil /* no error handler */, 0)
 //     for {
 //             pos, tok, lit := s.Scan()
 //             if tok == token.EOF {