uci-defaults are sourced and non-executable, so they do not require
a shebang.
While at it, apply consistent naming scheme.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Local variable declarations outside of functions are illegal since the Busybox
update to v1.25.0, therfore remove them from the appropriate places.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>