RFC: invert-match with files-with-matches

[Felipe Kellermann]

  % grep -l '\bfelipek\b' /etc/passwd
  /etc/passwd
  % grep -vl '\bfelipek\b' /etc/passwd
  /etc/passwd

Opinions?  Reading the standard I see there is no mention (perhaps this is 
an issue to also discuss with the POSIX / SuS / OpenGroup people) of this 
combination of flags in STDOUT section.  I think that applying inversion 
in files-with-matches would be nice. Today we have to script the listing:

  % grep -q 'felipek' /etc/passwd || echo /etc/passwd
  %

-- 
Felipe Kellermann