fix double-free in error path of open_blob()
diff --git a/lib/object.c b/lib/object.c
index eb89806..8abd471 100644
--- a/lib/object.c
+++ b/lib/object.c
@@ -1058,7 +1058,6 @@ done:
if (err) {
if (*blob) {
got_object_blob_close(*blob);
- free(*blob);
*blob = NULL;
} else if (outfd != -1)
close(outfd);