Merge branch 'lsfd--fix-the-way-to-stop-mkfds-1' of https://github.com/masatake/util...

Merge branch 'lsfd--fix-the-way-to-stop-mkfds-1' of https://github.com/masatake/util-linux

* 'lsfd--fix-the-way-to-stop-mkfds-1' of https://github.com/masatake/util-linux:
  tests: (lsfd::filter-floating-point-nums) use --raw output to make the case more robust
  tests: (lsfd::column-xmode) do rm -f the file for testing before making it
  tests: make ts_skip_capability accepts the output of older version of getpcaps
  tests: (lsfd::mkfds-unix-dgram) don't depend on the number of whitespaces in the output
  tests: (lsfd) avoid race conditions (part 1)
  tests: (test_mkfds) monitor stdin by default