If you don't trust XML::Simple, open the file yourself and give the module just the string:

open my $READ, '<', './config.xml' or die $!;
my $parser = 'XML::Simple'->new;
my $doc = $parser->XMLin(do { local $/; <$READ> }, ForceArray => qr/Re
+source/,
                                                   KeyAttr    => { ser
+ver => 'name' },
                                                   KeepRoot   => 1); #
+ I fixed the options.
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