Comment 3 for bug 1624836

The following change will fix the issue.

     <pattern url="https://launchpad.net/bugs/996916">
         <re key="Package">^(ubuntu-release-upgrader-core |update-manager)</re>
         <re key="VarLogDistupgradeMainlog">blacklist expr '\^postgresql-.*\[0-9\]\\.\[0-9\].*' matches</re>
+ <re key="VarLogDistupgradeMainlog">The package 'postgresql-.*' is marked for removal but it's in the removal blacklist</re>
     </pattern>