jenkinsci/jenkins — pull request #891 by ndeloof (2013-08-01 14:36:39+00:00)
Title: [JENKINS-19034] restore missing buildnumber-ID symlink

As permalink is updated, check number->ID symlink exists and (re)create if needed.

This issue has been reported for a jenkins installation migrated from windows (without symlink support) migrated to Unix. permalinks are recreated, but point to missing build number file