Instead of two scripts calling one another, now it's
only one script, with added variable names inside for clarity.
Also hopefully finally fixes the help messages for good.
fixesQubesOS/qubes-issues#4058
Default `ask` policy ignore target domain specified by the caller, so it
doesn't make sense to specify one. Provide convenient wrappers not
needing one. Do not change behaviour of existing tools for compatibility
reasons.
FixesQubesOS/qubes-issues#3141