fix uninitialized variablen recv_gitconfig_remotes; found by sthen@ with gcc8
diff --git a/lib/privsep.c b/lib/privsep.c
index 8964ec0..3c5dd60 100644
--- a/lib/privsep.c
+++ b/lib/privsep.c
@@ -1481,6 +1481,7 @@ got_privsep_recv_gitconfig_remotes(struct got_remote_repo **remotes,
*remotes = NULL;
*nremotes = 0;
+ iremotes.nremotes = 0;
err = got_privsep_recv_imsg(&imsg, ibuf, sizeof(iremotes));
if (err)