Merge branch 'column' of git://github.com/kerolasa/lelux-utiliteetit into column

* 'column' of git://github.com/kerolasa/lelux-utiliteetit:
  tests: add column tests
  column.c: global variables removed
  column.c: validate numeric user inputs
  column.c: free memory before exit
  column.c: make table function clarification
  column.c: coding style fixes
  column.c: add version printing
  column.c: replace emalloc with xcalloc

diff --cc tests/commands.sh.in
Simple merge