Error on constant

[mchurchward]

Notice: Use of undefined constant EXCLUDE_GROUP_MEMBERS - assumed 'EXCLUDE_GROUP_MEMBERS' in /var/www/html/moodle/report/ncccscensus/lib.php on line 1069
This is appearing when the report is run.
I believe the constant should be 'REPORT_NCCCSCENSUS_EXCLUDE_GROUP_MEMBERS'. This pull has the fix - PoetOS@2775b43