Bug#561097: Package Priority should be "optional"

[Ignace Mouzannar]

Package: python-clientform
Severity: serious
Justification: Policy 2.5

Hello,

One of my packages [1] depends on python-clientform; Debcheck states
that it is optional and has a Depends on python-clientform which is
extra [2].

python-clientform's "extra" priority was justifiable as it conflicted
with packages python2.3-clientform (<< 0.2.2) and python2.4-clientform
(<< 0.2.2).