ref/name, object: Simplify errors

1 files changed, 3 insertions, 11 deletions

diff --git a/ref/name/errors.go b/ref/name/errors.go
index 438c60aa..1011d518 100644
--- a/ref/name/errors.go
+++ b/ref/name/errors.go
@@ -1,14 +1,6 @@
 package name
 
-import "fmt"
+import "errors"
 
-// NameError reports an invalid reference name.
-type NameError struct {
-	Name   string
-	Reason string
-}
-
-// Error implements error.
-func (err *NameError) Error() string {
-	return fmt.Sprintf("ref/name: invalid name %q: %s", err.Name, err.Reason)
-}
+// ErrInvalidName indicates an invalid reference name.
+var ErrInvalidName = errors.New("ref/name: invalid name")