Add a test with a long entity name.

Add a test with a long entity name.

2005-01-24  Matthias Clasen  <mclasen@redhat.com>

	* tests/markups/fail-40.gmarkup: Add a test with a long entity
	name.

	* glib/gmarkup.c (unescape_text_state_inside_entity_name): Don't
	copy the entity name into a short buffer of fixed length. Instead,
	compare it in place with strncmp(), and do a full strdup() in the
	error path.  (#165100, Simon Budig)