In the FreeBSD handbook, on the section on permissions (https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/permissions.html): Search and replace "a ls -l" -> "an ls -l"
Thanks, committed.
A commit references this bug: Author: 0mp Date: Thu Oct 29 09:35:04 UTC 2020 New revision: 54651 URL: https://svnweb.freebsd.org/changeset/doc/54651 Log: Fix a typo PR: 250715 Reported by: panden@gmail.com Changes: head/en_US.ISO8859-1/books/handbook/basics/chapter.xml