1 files changed, 11 insertions, 2 deletions
diff --git a/src/pkg/io/ioutil/ioutil.go b/src/pkg/io/ioutil/ioutil.go
index 57d797e85..5f1eecaab 100644
--- a/src/pkg/io/ioutil/ioutil.go
+++ b/src/pkg/io/ioutil/ioutil.go
@@ -2,8 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// Utility functions.
-
+// Package ioutil implements some I/O utility functions.
 package ioutil
 
 import (
@@ -102,3 +101,13 @@ func (nopCloser) Close() os.Error { return nil }
 func NopCloser(r io.Reader) io.ReadCloser {
 	return nopCloser{r}
 }
+
+type devNull int
+
+func (devNull) Write(p []byte) (int, os.Error) {
+	return len(p), nil
+}
+
+// Discard is an io.Writer on which all Write calls succeed
+// without doing anything.
+var Discard io.Writer = devNull(0)