Public bug reported:

Compare

    $ sed 's/c*$/x/g' <<<abc
    abx
    $ s2p 's/c*$/x/g' | perl - <(echo abc)
    abxx
    $

sed's behaviour is correct for sed.  The Perl that s2p(1) produces 
doesn't do the equivalent substitution, instead matching zero c's and 
the end of the string after the first substitution of c by x.

** Affects: perl (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1008584

Title:
  perl's s2p(1) produces non-equivalent perl for simple sed substitution

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