expvar: fix typo in Publish documentation
Found and fixed by bketelsen@gmail.com.
Not worth making him a CONTRIBUTOR to delete one character.
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5476054
diff --git a/src/pkg/expvar/expvar.go b/src/pkg/expvar/expvar.go
index 40f5441..5ced285 100644
--- a/src/pkg/expvar/expvar.go
+++ b/src/pkg/expvar/expvar.go
@@ -193,7 +193,7 @@
var vars map[string]Var = make(map[string]Var)
var mutex sync.Mutex
-// Publish declares an named exported variable. This should be called from a
+// Publish declares a named exported variable. This should be called from a
// package's init function when it creates its Vars. If the name is already
// registered then this will log.Panic.
func Publish(name string, v Var) {
