Fixes https://dev.openwrt.org/ticket/20038 Patch is based on http://git.alpinelinux.org/cgit/aports/plain/main/nfs-utils/musl-getservbyport.patch?id=3579df3582b5e5ea53be8cd8eef240f3f0cabb10 Signed-off-by: Maxim Storchak <m.storchak@gmail.com>