Merge branch 'usage-part2' of https://github.com/rudimeier/util-linux

* 'usage-part2' of https://github.com/rudimeier/util-linux:
  misc: cosmetics, remove argument from usage(FILE*)
  misc: cosmetics, remove argument from usage(int)
  misc: never use usage(stderr)
  misc: never use usage(ERROR)
  misc: cleanup and fix --unknownopt issues
  flock, getopt: write --help to stdout and return 0
  tools: add checkusage.sh

diff --cc term-utils/script.c
Simple merge