check stderr with isatty() instead of stdout when deciding to show progress

diff --git a/transport-helper.c b/transport-helper.c
index 5078c7100f16e9d7ac08aad05e3797ad5b6626bc..bfe3bc30a97aaa0872d9570a2f93f8f4f6fdb492 100644 (file)
--- a/transport-helper.c
+++ b/transport-helper.c
@@ -144,7 +144,7 @@ static void standard_options(struct transport *t)
        char buf[16];
        int n;
        int v = t->verbose;
-       int no_progress = v < 0 || (!t->progress && !isatty(1));
+       int no_progress = v < 0 || (!t->progress && !isatty(2));
 
        set_helper_option(t, "progress", !no_progress ? "true" : "false");