build: fix indent in image-commands.mk

Convert leading spaces to tab to match rest of the file.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
(cherry picked from commit 7e5a0da642)
This commit is contained in:
Adrian Schmutzler
2019-08-09 13:55:43 +02:00
committed by Jo-Philipp Wich
parent 8b436c777c
commit 8be111d0ac