Fix bluetooth package installation

[holgerfriedrich]

Signed-off-by: Holger Friedrich [email protected]

[holgerfriedrich]

As @mstormi pointed out, #898 fails installing the packages due to the latest shellcheck change. The solution with smallest impact was to remove the quotes again and add an exception.
Other possible way would be to use an array.

Merging (small patch exception)

[mstormi]

See https://travis-ci.com/github/openhab/openhabian/builds/167592500
Build fail for x86 and 64-bit OS ARM.
See their logs: seems there's more BT packages that do not exist ?

And replace 'exit' with a 'return', please so install can continue for normal users.

[mstormi]

See also https://community.openhab.org/t/openhabian-install-fails-installing-additional-bluetooth-packages-failed-install-broken-and-unusable/99193

[holgerfriedrich]

@mstormi I do not understand what is going on here, I have those packages installed on my system! I had a closer look, the missing ones seem to be from archive.raspberrypi.org/debian and not from raspbian.raspberrypi.org/raspbian. Let's wait another few days and see the logs.
Thanks for the hotfix, this is good anyway.

[mstormi]

Note test builds only fail (due to packages missing) for specific architectures, it's never all of them.