From b29fc0b05f579d293043b130aef3338eaf052c8e Mon Sep 17 00:00:00 2001
From: Michael Forney <mforney@mforney.org>
Date: Fri, 1 Nov 2019 19:03:00 -0700
Subject: [PATCH] chgrp: Pass -1 as the owner ID to chown(3)

Otherwise, if the owner ID changes between stat() and chown(), we will
revert to the previous owner while changing the group.
---
 chgrp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/chgrp.c b/chgrp.c
index 93d7577..960ed2c 100644
--- a/chgrp.c
+++ b/chgrp.c
@@ -26,7 +26,7 @@ chgrp(const char *path, struct stat *st, void *data, struct recursor *r)
 		chownf = chown;
 	}
 
-	if (chownf(path, st->st_uid, gid) < 0) {
+	if (chownf(path, -1, gid) < 0) {
 		weprintf("%s %s:", chownf_name, path);
 		ret = 1;
 	} else if (S_ISDIR(st->st_mode)) {