Merge branch 'PR/Benno-29Apr' of https://github.com/karelzak/util-linux-work

* 'PR/Benno-29Apr' of https://github.com/karelzak/util-linux-work:
  po-man: add hyperlink.adoc to po4a.cfg
  docs,usage: harmonize description of --hyperlink, and add 2 missing ones
  pipesz: report default size in --help, instead of referring the user
  lsfd: improve grammar, and use angular brackets around placeholder word
  uuidd: put an option and its description in a single message
  pipesz: (man) improve the markup and some wordings
  irqtop: make the wording of an error message identical to that of another
  unshare: make the wording of a message identical to that of three others