package/openrc: fix build with gcc 10

Fixes:
 - https://bugs.busybox.net/show_bug.cgi?id=13331

Cc: mscdex@mscdex.net
Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
1 file changed