Install only the Perl module, not the example script.

--- a/Makefile.PL
+++ b/Makefile.PL
@@ -1,6 +1,12 @@
 use ExtUtils::MakeMaker;
 # See lib/ExtUtils/MakeMaker.pm for details of how to influence
 # the contents of the Makefile that is written.
+
+sub MY::libscan
+{
+	return $_[1] =~ /\.pm$/? $_[1]: '';
+}
+
 WriteMakefile(
     'NAME'		=> 'Data::TreeDumper::Renderer::DHTML',
     'VERSION_FROM'	=> 'DHTML.pm', # finds $VERSION