Merge r1541054 from apr trunk:

Fix error message from ABTS_INT_NEQUAL() and ABTS_STR_NEQUAL().


git-svn-id: https://svn.apache.org/repos/asf/apr/apr-util/branches/1.5.x@1541067 13f79535-47bb-0310-9956-ffa450edef68