At this page: https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/x-fonts.html It is suggested to install package "pkg install mkfontdir". Such package does not exist anymore, it has been merged into "mkfontscale", according to: http://freebsd.1045724.x6.nabble.com/HEADS-UP-mkfontscale-updated-and-mkfontdir-removed-td6319578.html bye n.
A commit references this bug: Author: bcr Date: Sun May 12 15:01:43 UTC 2019 New revision: 53007 URL: https://svnweb.freebsd.org/changeset/doc/53007 Log: Chase merge of mkfontdir into mkfontscale. The port mkfontdir was removed and merged into mkfontscale. Rename mentions of mkfontdir in the X11 chapter to fit. PR: 237546 Submitted by nmingotti@gmail.com Changes: head/en_US.ISO8859-1/books/handbook/x11/chapter.xml
I just committed a patch to rename mkfontdir into mkfontscale in that chapter. Thanks for submitting the patch. PR closed!