The dialog box for GPG unsigned packages changes width, depending on the length
of the package and versioning information

As such the OK button moves laterally -- this inturns requires lots of precise
mousing. This is bad, for a single mousing error dumps the user out of the
up2date process altogether -- and indeed, if one were using multiple
repositories, one might justifiably want to omit an unsigned package, but NOT
exit the process altogether

(-- yes I am aware of the "up2date --nosig" approach)

RFE:  make the display box seqmented into two panels, top and bottom and thus 
permit the geometry of the bottom box, containing the OK/Cancel centered in the
bottom panel.

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obviously, second RFE:  don't bail when a single non-GPG signed package is
rejected.