doc: trivial comment typo fix
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5529080
diff --git a/doc/progs/defer2.go b/doc/progs/defer2.go
index 341a141..cad66b0 100644
--- a/doc/progs/defer2.go
+++ b/doc/progs/defer2.go
@@ -2,7 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// This file contains the code snippets included in "Defer, Panic, an Recover."
+// This file contains the code snippets included in "Defer, Panic, and Recover."
package main
