Spaces and tabs are widely used in variable definitions. We have to
remove them to ensure that get_mac_ascii() works properly.
Signed-off-by: Shiji Yang <yangshiji66@qq.com>
Link: https://github.com/openwrt/openwrt/pull/17262
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit 551e04f3c9)