veyron.io/veyron/veyron/services/identity/identityd: Convert to use verror2

The change updates
	veyron.io/veyron/veyron/services/identity/identityd/main.go
to use verror2 instead of verror.

The import statement renames verror2 to verror so that when we finally remove
verror and rename verror2 to verror, the change will be easy.

Change-Id: Ifa72834b2df3f5486a2f2e7bb0d1a63998d56a04
diff --git a/services/identity/identityd/main.go b/services/identity/identityd/main.go
index 58a5a75..353617a 100644
--- a/services/identity/identityd/main.go
+++ b/services/identity/identityd/main.go
@@ -21,7 +21,7 @@
 	"veyron.io/veyron/veyron2/options"
 	"veyron.io/veyron/veyron2/rt"
 	"veyron.io/veyron/veyron2/security"
-	"veyron.io/veyron/veyron2/verror"
+	verror "veyron.io/veyron/veyron2/verror2"
 	"veyron.io/veyron/veyron2/vlog"
 
 	"veyron.io/veyron/veyron/lib/signals"
@@ -180,7 +180,7 @@
 	if invoker := d[suffix]; invoker != nil {
 		return invoker, allowEveryoneAuthorizer{}, nil
 	}
-	return nil, nil, verror.NoExistf("%q is not a valid suffix at this server", suffix)
+	return nil, nil, verror.Make(verror.NoExist, nil, suffix)
 }
 
 // Starts the blessing services and the discharging service on the same port.