[DRE-maint] Bug#909105: consider switching asciidoctor to Architecture: all

[Joseph Herlant]

> I reported that bug.

Indeed, that's why I was confused! :D

> After reading my report three times, I see how you
> might have interpreted it that way. I wrote that there is a problem,
> "because asciidoctor is Architecture: all and implicitly Multi-Arch:
> no". The problem results from the combination of those fields, not from
> either single field. The satisfiability problem is fully solved by the
> Multi-Arch: foreign field alone regardless of the Architecture value.

After reviewing the change, I don't exactly remember why I did the
change only on the ruby-asciidoctor package but I'm guessing I simply
forgot to update asciidoctor arch part when doing the split.

I'll have a look at it asap.

Joseph