Fix edge use cases in repack.sh

linux-surface / surface-uefi-firmware

UEFI firmware updates for surface using fwupd. WIP, be careful.

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Closed kepi closed 2 years ago

kepi commented 2 years ago

This is simply taken from #21 as @ecc1 was too lazy to do PR :)

Fix device detection when grep returns two devices. Fixes #17
Fix arithmetic error when /bin/sh is not bash (usually i.e. dash on Debian). Fixes #18
Fixes #21 as this provides the PR

StollD commented 2 years ago

Thank you!