Provide an example of specifying a common vendor value as the documentation is not clear enough at the moment. While here, add 'D:#' to the previous example to eat the remaining description string. Also, pet mandoc a bit. Submitted by: Yuri Pankov <yuripv@yuripv.net> Reviewed by: cem, imp Approved by: re (kib), krion (mentor, implicit), mat (mentor, implicit) Differential Revision: https://reviews.freebsd.org/D17321