DERBY-6441: Add ORDER BY clauses to a number of queries in GrantRevokeDDLTest in order to force deterministic results; checks in derby-6441-01-addOrderByClauses.diff.

git-svn-id: https://svn.apache.org/repos/asf/db/derby/code/trunk@1553280 13f79535-47bb-0310-9956-ffa450edef68