[Lazarus] lazde problem with '<' character

[Howard Page-Clark]

If you attempt to open the lazarus\docs\xml\rtl\system.xml in lazde it 
chokes on line 9705 pos 31 with an exception:
	character '<' not allowed in attribute value

and in the offending line:
  <element name="operator <=(variant, variant): Boolean">
it is clear that the 'less-than' operator is causing the problem.

Presumably lazde was not used to create this file?
Is there some way to escape characters such as this which have a special 
meaning to an XML file parser?
If not, should I report this as a bug?

Howard