What are the options to use "mount -bind" at boot time?

Installing and Using OpenWrt
#1

I have extroot installed and want to have persistent /var/log. My solution is to add the following entry to /etc/fstab:

/log /var/log none bind 0 0

and create /etc/rc.d/S45-etc-fstab with the following entry:

#!/bin/sh /etc/rc.common

START=45

boot() {
    /usr/bin/mount -a
}

Are there better options to achieve the same?