isAnyWirelessPoweredOn assumes deprecated device/power/state

[Steve Langasek]

Binary package hint: acpi-support

/usr/share/acpi-support/state-funcs in hardy currently has an isAnyWirelessPoweredOn() function that reads:

[...]
    for DEVICE in /sys/class/net/* ; do
        if [ -d $DEVICE/wireless -a -r $DEVICE/device/power/state ] ; then
            # If any of the wireless devices are turned on then return success
            if [ "`cat $DEVICE/device/power/state`" -eq 0 ] ; then
[...]

however, /sys/class/net/device/power/state appears to be deprecated (indeed, the toggleAllWirelessStates() function farther down uses it only as a fallback if rf_kill is not present), and does not exist at all for my 3945 device with amd64 2.6.24-2-generic and the iwl3945 driver. This results in isAnyWirelessPoweredOn() always returning 1 on my system, causing /etc/acpi/ibm-wireless.sh to misbehave.