Merge branch 'cm/remote-mediawiki-perlcritique' into next

Merge branch 'cm/remote-mediawiki-perlcritique' into next

* cm/remote-mediawiki-perlcritique: (31 commits)
  git-remote-mediawiki: make error message more precise
  git-remote-mediawiki: add a perlcritic rule in Makefile
  git-remote-mediawiki: add a .perlcriticrc file
  git-remote-mediawiki: clearly rewrite double dereference
  git-remote-mediawiki: fix a typo ("mediwiki" instead of "mediawiki")
  git-remote-mediawiki: put non-trivial numeric values in constants.
  git-remote-mediawiki: don't use quotes for empty strings
  git-remote-mediawiki: replace "unless" statements with negated "if" statements
  git-remote-mediawiki: brace file handles for print for more clarity
  git-remote-mediawiki: modify strings for a better coding-style
  git-remote-mediawiki: put long code into a subroutine
  git-remote-mediawiki: remove import of unused open2
  git-remote-mediawiki: check return value of open
  git-remote-mediawiki: assign a variable as undef and make proper indentation
  git-remote-mediawiki: rename a variable ($last) which has the name of a keyword
  git-remote-mediawiki: remove unused variable $entry
  git-remote-mediawiki: turn double-negated expressions into simple expressions
  git-remote-mediawiki: change the name of a variable
  git-remote-mediawiki: add newline in the end of die() error messages
  git-remote-mediawiki: change style in a regexp
  ...