Thanking a "shepherd" in acknowledgments
CS conferences often ask a member of the Program Committee who reviewed a paper which is accepted but has some problems to help the authors fix it up for publication. This person is usually called a "shepherd" for the paper with the overt connotation to people who mind sheep in a field. The problems with such a paper can include English language problems, other kinds of bad formatting, the need for a few additional results or cases, or the elaboration of some component of the work that was insufficiently described. This is all done in order to increase the quality of the presentation of otherwise excellent work.