Close channel on exit

Kubuxu · Kubuxu · commit 7ab4305b0d01 · 2017-03-25T19:19:07.000+01:00
diff --git a/shell.go b/shell.go
@@ -389,6 +389,7 @@ func (s *Shell) FindProvs(ctx context.Context, cid string) (<-chan pstore.PeerIn
 	outchan := make(chan pstore.PeerInfo, 4)
 
 	go func() {
+		defer close(outchan)
 		defer cancel()
 
 		var n notif.QueryEvent
