sk-unix: Fix typo in name length estimation

Name with up to UNIX_PATH_MAX in length is
allowed value.
Reported-by: Nikita Spiridonov <nspiridonov@odin.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

sk-unix.c

@@ -1255,7 +1255,7 @@ static int collect_one_unixsk(void *o, ProtobufCMessage *base)
 	ui->name_dir = (void *)ui->ue->name_dir;
 
 	if (ui->ue->name.len) {
-		if (ui->ue->name.len >= UNIX_PATH_MAX) {
+		if (ui->ue->name.len > UNIX_PATH_MAX) {
 			pr_err("Bad unix name len %d\n", (int)ui->ue->name.len);
 			return -1;
 		}