diff --git a/src/pkg/go/doc/comment.go b/src/pkg/go/doc/comment.go
index 583b763eaf6..e8595a690ba 100644
--- a/src/pkg/go/doc/comment.go
+++ b/src/pkg/go/doc/comment.go
@@ -194,7 +194,7 @@ var (
 // into a link). Go identifiers that appear in the words map are italicized; if
 // the corresponding map value is not the empty string, it is considered a URL
 // and the word is converted into a link. If nice is set, the remaining text's
-// appearance is improved where is makes sense (e.g., `` is turned into “
+// appearance is improved where it makes sense (e.g., `` is turned into “
 // and '' into ”).
 func emphasize(w io.Writer, line []byte, words map[string]string, nice bool) {
 	for {
diff --git a/src/pkg/os/file_unix.go b/src/pkg/os/file_unix.go
index 9bd75bce01a..df5894459ee 100644
--- a/src/pkg/os/file_unix.go
+++ b/src/pkg/os/file_unix.go
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// The os package provides a platform-independent interface to operating
-// system functionality.  The design is Unix-like.
 package os
 
 import (
diff --git a/src/pkg/os/file_windows.go b/src/pkg/os/file_windows.go
index e26c138c383..658e9c8ddf2 100644
--- a/src/pkg/os/file_windows.go
+++ b/src/pkg/os/file_windows.go
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// The os package provides a platform-independent interface to operating
-// system functionality.  The design is Unix-like.
 package os
 
 import (