Since svn rev [38557] we support power buttons, for example
the ACPI power button on x86 machines.
Add a simple shutdown script to /etc/rc.button, to gracefully shutdown
the machine after the power button is pressed.
Tested on x86 and x86_64 in a kvm virtual machine.
Signed-off-by: Stefan Hellermann <stefan@the2masters.de>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40909 3c298f89-4303-0410-b956-a3cf2f4a3e73