Merge branch 'kill-tests-v4' of git://github.com/kerolasa/lelux-utiliteetit

* 'kill-tests-v4' of git://github.com/kerolasa/lelux-utiliteetit:
  lib/procutils: notice setuid() process ownership changes
  lib/procutils: reset errno before strtol() call
  kill: add --verbose option to display what is killed
  tests: check kill all user processes
  tests: check kill print pid option
  tests: check various ways to specify kill signal
  tests: check kill is converting signals names correctly
  tests: add signal receiver program
  kill: remove unnecessary indirection
  kill: make options --pid and --queue mutually exclusive