py3 bugfix: don't give py2 version number for python3-all package
py3 bugfix: don't give py2 version number for python3-all package

benthomasson/stdeb,pombredanne/stdeb,astraw/stdeb,sathieu/stdeb,LeMeteore/stdeb,sathieu/stdeb,pombredanne/stdeb,astraw/stdeb,benthomasson/stdeb,benthomasson/stdeb,LeMeteore/stdeb,astraw/stdeb,sathieu/stdeb,pombredanne/stdeb,LeMeteore/stdeb