I don't think AttrIndent does what you expect.
AttrIndent => 1 # out - handy
When you are using XMLout(), enable this option to have attributes printed one-per-line with sensible indentation rather than all on one line.
Args to XMLout
is a list, not a hash, as pointed out by Anonymous Monk
Update 2: Using use XML::Simple qw(:strict); would have given a warning:
No value specified for 'ForceArray' option in call to XMLin()
my $str = <<EOL;
<opt class="java.beans.XMLDecoder" version="1.6.0-oem">
<void method="add" string="baseball" />
<void method="add" string="football" />
my $ref = XMLin($str);
open FH, ">", "webcams.xml" or die ("open failed");
print FH XMLout($ref,
AttrIndent => 1,
xmldecl => '<?xml version="1.0" encoding="UTF-8"?>');
close FH or die ("close failed");
<?xml version="1.0" encoding="UTF-8"?>
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