complete -c expand -s i -l initial       -d 'do not convert tabs after non blanks'
complete -c expand -s t -l tabs -x       -d 'have tabs NUMBER characters apart, not 8'
complete -c expand -s t -l tabs -x       -d 'use comma separated list of explicit tab positions'
complete -c expand -l help     -d 'display this help and exit'
complete -c expand -l version  -d 'output version information and exit'