The duckduckgo command doesn't work with multiple perl binaries

Hi,

On my system I have a vendor perl in /usr/bin/perl.  This perl also exists in my $PATH.  However, I have various perl binaries I have build myself elsewhere.

By setting the #! line to "#!perl" ExtUtils::MakeMaker replaces this to the full path to the correct installation of perl at install time.  You can run "dzil install" to see it do this.

Thanks,
Tom