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

* 'sfdisk' of git://github.com/kerolasa/lelux-utiliteetit:
  Merge branch 'master', remote-tracking branch 'upstream/master'
  sfdisk: fix for data type mismatches
  sfdisk: fix implicit overflow
  docs: sfdisk manual update
  sfdisk: previously undocumented options to usage
  sfdisk: help screen format
  sfdisk: declare unused function attributes