Comment 18 for bug 467000

From the insserv man page:
    UPSTART JOB COMPATIBILITY
           To allow upstart jobs to work as init.d scripts, insserv will recognize a symlink from path/to/init.d/script to /lib/init/upstart-job as upstart
           jobs, and instead of reading the header from the file will run the script with the argument lsb-header to get the script header.

This sounds like upstart now needs to provide the "lsb-header" functionality, which is what the patch provided here is about.