Merge r1625247 from apr trunk:

MySQL driver: Fix incorrect check for bad parameter in the
driver support for apr_dbd_transaction_end().

PR: 56330
Submitted by: Weiqiang Li <weiqiang_li hotmail.com>


git-svn-id: https://svn.apache.org/repos/asf/apr/apr-util/branches/1.5.x@1625249 13f79535-47bb-0310-9956-ffa450edef68