/usr/share/perl5/Text/Unidecode/x37.pm is in libtext-unidecode-perl 1.30-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | # Time-stamp: "2014-07-22 05:15:15 MDT sburke@cpan.org"
$Text::Unidecode::Char[ 0x37 ] = Text::Unidecode::make_placeholder_map();
1;
|