As a first countermeasure you can simply put a "no warnings" into your loop.
for my $line (@template){
     no warnings;
     $line =~ s/(\$\w+->{\w+})/$1/eeg;
     $line =~ s/(\$\w+)/$1/eeg;
     $text .= $line;
}

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holli, /regexed monk/

In reply to Re: Use of uninitialized value in substitution iterator in variable expansion by holli
in thread Use of uninitialized value in substitution iterator in variable expansion by jaco

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