contrib/mandoc/apropos.1 (rendered) Line 66: The options -chlw are also supported and are documented in man(1). These options are not documented in man(1). apropos.1 is referencing mandoc man(1), but we are using FreeBSD man(1). From mandoc man(1): -c Copy the manual page to the standard output instead of using less(1) to paginate it. This is done by default if the standard output is not a terminal device. -h Display only the SYNOPSIS lines of the requested manual pages. Implies -a and -c. -l A synonym for mandoc(1). The name arguments are interpreted as filenames. No search is done and file, path, section, subsection, and -w are ignored. This option implies -a. -w List the pathnames of all matching manual pages instead of displaying any of them. If no name is given, list the directories that would be searched. I tested them: -c does not appear to do anything. -h prints alternating rows of periods. -l does not make sense (to me) in the context of apropos. -w works, is very helpful, and certainly must be mentioned. apropos(1) certainly accepts these options at any rate. I do not understand how to integrate these options into the manual. Our man(1) is a very nice example to study and learn shell scripting, and has extra features. Issue present for all supported and development releases since the 2015 import of mandoc apropos(1).