scripts/flashing/flash.sh: remove trailing whitespaces

Signed-off-by: Rosen Penev <rosenp@gmail.com>
[cut out of patch with different subject]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
master
Rosen Penev 4 years ago committed by Adrian Schmutzler
parent 34a2780395
commit 69f8983af4
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