XML::DOM::CDATASection(3pm) on Linux

The text 47bdb22fedc5, as Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny) shipped it.

Escaping XML text blocks in XML::DOM

XML::DOM::CDATASection(3pm) on Linux now