pager - auto mode
  link currently points to /bin/less
/bin/less - priority 77
  slave pager.1.gz: /usr/share/man/man1/less.1.gz
/bin/more - priority 50
  slave pager.1.gz: /usr/share/man/man1/more.1.gz
/usr/bin/pg - priority 10
  slave pager.1.gz: /usr/share/man/man1/pg.1.gz
Current 'best' version is '/bin/less'.

man: invalid option -- 'D'
usage: man [-acfhklw] [-C file] [-M path] [-m path] [-S subsection]
   [[-s] section] name ...