document REGEXP argument for help options in bin/*
refer to REGEXP argument as PATTERN like less does
README: add intro hook and source+result examples
pager(1) isn't universal: CentOS uses `less -is`
silence man(1) STDERR on dynamically converted roff
Merge branch 'other'
Merge branch 'patch'
Version 3.4.1 (2014-07-01)