errors: fix typo in As documentation

Change-Id: Ia26b4457aa0780171a636df93f8d210de0278ec5
GitHub-Last-Rev: 577a6fec336010cb56a547bf2d6304fd3e0cb257
GitHub-Pull-Request: golang/go#37760
Reviewed-on: https://go-review.googlesource.com/c/go/+/222621
Reviewed-by: Ian Lance Taylor <iant@golang.org>

diff --git a/src/errors/wrap.go b/src/errors/wrap.go
index 272d056b31846d20ab74a11d301a37101728ced8..b82ca34b46faf5c2c98becae87dbe01658527293 100644 (file)
--- a/src/errors/wrap.go
+++ b/src/errors/wrap.go
@@ -70,7 +70,7 @@ func Is(err, target error) bool {
 // setting target.
 //
 // An error type might provide an As method so it can be treated as if it were a
-// a different error type.
+// different error type.
 //
 // As panics if target is not a non-nil pointer to either a type that implements
 // error, or to any interface type.