The `clean' target takes optional arguments, so denote that in the item header. Additionally, the subtargets are fixed strings, not variables, so change the use of Va to Cm to reflect that.
Index: bsd.port.mk.5 =================================================================== RCS file: /cvs/src/share/man/man5/bsd.port.mk.5,v retrieving revision 1.426 diff -u -p -r1.426 bsd.port.mk.5 --- bsd.port.mk.5 23 Sep 2015 01:38:36 -0000 1.426 +++ bsd.port.mk.5 26 Sep 2015 18:46:05 -0000 @@ -178,47 +178,49 @@ will try to fetch a version with the cor main archive site in the case of a checksum mismatch. .Ev NO_CHECKSUM can be used to avoid all checksumming steps. -.It Cm clean +.It Cm clean Ns Op Pf = Ar subtarget Clean ports contents. -By default, it will clean the work directory. -It can be invoked as -make clean='[depends build bulk work fake flavors dist install sub package -packages plist]'. +If +.Ar subtarget +is omitted, it will clean the work directory. +Otherwise, +.Ar subtarget +can be set to one of the following: .Bl -tag -width packages -.It Va work +.It Cm work Clean work directory. -.It Va bulk +.It Cm bulk Clean bulk cookie. -.It Va build +.It Cm build Clean the .Va WRKBUILD directory (only useful if .Va SEPARATE_BUILD is set). -.It Va depends +.It Cm depends Recurse into dependencies. -.It Va dist +.It Cm dist Clean distribution files. -.It Va fake +.It Cm fake Clean fake installation directory. -.It Va flavors +.It Cm flavors Clean all work directories. -.It Va install +.It Cm install Uninstall package. -.It Va package +.It Cm package Remove all copies of package file. -.It Va plist +.It Cm plist Remove registered packing lists of all subpackages. -.It Va sub +.It Cm sub With -.Va install +.Cm install or -.Va package , +.Cm package , clean subpackages as well. -.It Va packages +.It Cm packages Shorthand for .Sq sub package . -.It Va all +.It Cm all Shorthand for .Sq work flavors packages plist . .El
