I'm surprised nobody has pointed you to perldoc perldiag! 

  Too late for "-T" option
      (X) The #! line (or local equivalent) in a Perl script contains 
+the
      -T option, but Perl was not invoked with -T in its command line.
      This is an error because, by the time Perl discovers a -T in a
      script, it's too late to properly taint everything from the
      environment. So Perl gives up.

      If the Perl script is being executed as a command using the #!
      mechanism (or its local equivalent), this error can usually be f
+ixed
      by editing the #! line so that the -T option is a part of Perl's
      first argument: e.g. change "perl -n -T" to "perl -T -n".

      If the Perl script is being executed as "perl scriptname", then 
+the
      -T option must appear on the command line: "perl -T scriptname".

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In reply to Re: Taint Mode by jsprat
in thread Taint Mode by kryberg

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