hpcc-systems/HPCC-Platform — pull request #4718 by ghalliday (2013-08-02 11:00:08+00:00)
Title: HPCC-9817 Fix issues comparing against a NULL unicode string

Strange as it may seem, the ICU compare functions check for NULL
pointers as parameters, and sometimes abort early giving the wrong result.
See http://sourceforge.net/mailarchive/message.php?msg_id=29406824 for
a similar issue.

Signed-off-by: Gavin Halliday