Let's switch the order in which we process positional arguments and analyze/tweak detail parameters. Let's look at the positional arguments first (i.e. the "big picture") and then look at the switches (i.e. "little details"). THis doesn't matter much, but makes for better error messages I think. At least I was very confused that a completely borked cmdline I passed to cryptenrolled complained about some detail and let the major fuckup pass...
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