[WWcvs] pg: define ans_label slot in a new AnswerHash to be undefined.

[Mike G. v. a. <we...@ma...>]

Log Message:
-----------
define ans_label slot in a new AnswerHash to be undefined.

Modified Files:
--------------
    pg/lib:
        AnswerHash.pm

Revision Data
-------------
Index: AnswerHash.pm
===================================================================
RCS file: /webwork/cvs/system/pg/lib/AnswerHash.pm,v
retrieving revision 1.15
retrieving revision 1.16
diff -Llib/AnswerHash.pm -Llib/AnswerHash.pm -u -r1.15 -r1.16
--- lib/AnswerHash.pm
+++ lib/AnswerHash.pm
@@ -148,6 +148,7 @@
 					'correct_ans'			=>	'No correct answer specified',
 					'student_ans'			=>	undef,
 					'ans_message'			=>	'',
+					'ans_label'            =>   undef,
 					'type'					=>	'Undefined answer evaluator type',
 					'preview_text_string'	=>	undef,
 					'preview_latex_string'	=>	undef,