[Merge] ~jefferyto/ubuntu/+source/initramfs-tools:ubuntu-core-dev-fix-resume-device-type-check into ~ubuntu-core-dev/ubuntu/+source/initramfs-tools:ubuntu/devel

[Jeffery To]

I prefer neither option because if statements should not have side effects, in this case setting a variable. (Sometimes this is unavoidable with shell scripts, but it should be avoided when possible.) Both options are also less readable than my original code.

Having examined the code for resolve_device, I am convinced it only prints output if it is successful. Is there any condition in resolve_device where it will print output as an error?
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https://code.launchpad.net/~jefferyto/ubuntu/+source/initramfs-tools/+git/initramfs-tools/+merge/468643
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