[Rpm-maint] [rpm-software-management/rpm] RFE: pass parametric macro options and arguments to Lua natively (#1092)

[Panu Matilainen]

Oh, looking closer:

> @nim-nim wrote
> [...]
> exist because nil is not the same as false or empty

Yes, nil is not same as empty. It however very explicitly is same as false, quoting https://www.lua.org/manual/5.4/manual.html#2.1:
> Both nil and false make a condition false; they are collectively called false values. Any other value makes a condition true. 

It doesn't get much more clearer than that. If you've assumed otherwise then that's your headache. If you look closer, this PR specifically *relies* on the fundamental language behavior of empty meaning true and nil being false. I'm not aware of anything in rpm assuming otherwise, but if there was that'd simply be a bug that needs fixing.

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