dpt: unittests: use py3versions -s (instead of -r)
Quoting:
<tumbleweed> my thinking was always that --requested = --supported + the
possibility of overriding in the package <tumbleweed> so I
would *always* use --requested
<tumbleweed> but that meant you had to redirect stderr, because it would
complain if no versions were actually requested in the
package
<tumbleweed> and then lintian started complaining too
<tumbleweed> in practice we never use those overrides (python language
changes stopped being so frequent)
Edited by Agathe Porte