RFR: JDK-8056934: ZipInputStream does not correctly handle local header data descriptors with the optional signature missing

[Martin Buchholz]

>
>
> For the comment in ZipInputStream then it might be better to move that to
> readEnd. My preference would be to not include the part starting "As of
> 2014-08, phyton ..." as that might not interesting in years to come.


I moved the comment into readEnd's javadoc.  I think laying out the
compatibility landscape is sufficiently useful that the comment about
python's implementation should stay, especially given that python has no
plans to "fix" theirs.