Merge branch 'chrt_pidino_support' of https://github.com/cgoesche/util-linux-fork

* 'chrt_pidino_support' of https://github.com/cgoesche/util-linux-fork:
  chrt: improve error message for invalid policy value
  chrt: remove redundant initializations to 0 in struct members
  chrt: deduplicate code for process tasks retrieval
  chrt: report actual PID in error message when 0 is specified
  tests: (chrt) simple PID:inode address format test
  chrt: support the 'PID:inode' address format