mpack -V (return code: 1)
mpack: invalid option -- '-'
mpack version 1.6
usage: mpack [-s subj] [-d file] [-m maxsize] [-c content-type] file address...
mpack [-s subj] [-d file] [-m maxsize] [-c content-type] -o file file
mpack [-s subj] [-d file] [-m maxsize] [-c content-type] -n groups file
mpack -HELP (return code: 1)
mpack: invalid option -- '-'
mpack version 1.6
usage: mpack [-s subj] [-d file] [-m maxsize] [-c content-type] file address...
mpack [-s subj] [-d file] [-m maxsize] [-c content-type] -o file file
mpack [-s subj] [-d file] [-m maxsize] [-c content-type] -n groups file