Comment 6 for bug 1766982

This worked as described for me. Before fix I see 'null' in the pull list csv extract when there is no author, after fix I see just a blank string when there is no author.

Signoff branch at: user/stompro/LP1766982_signoff

https://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/stompro/LP1766982_signoff

Josh