3c7134fa32
This fixes "sh: write error: Invalid argument" for all default!=1 LEDs
as an empty $brightness was used.
Setting up LEDs via luci also now works again.
Fixes cbdfd03e: "base-files: add option to set LED brightness"
Signed-off-by: Andre Heider <a.heider@gmail.com>
Link: https://github.com/openwrt/openwrt/issues/17269
Signed-off-by: John Crispin <john@phrozen.org>