I thought this was done for one of the 5.7.x versions. That is, a development version. I remember the change being talked about in P5P, but I can't find the appropriate digest...
What's your version?

In reply to Re: In string, @var now must (NOT) be written as \@var (boo) by boo_radley
in thread In string, @var now must (NOT) be written as \@var by Davious

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