build: if LeakSanitizer fails, add a failed test entry in the XML file
build: if LeakSanitizer fails, add a failed test entry in the XML file

This should improve Jenkins reporting of tests with leaks.

Change-Id: I5cda0bedd3ec890668e58820b0f874704f207413
Reviewed-on: http://gerrit.sjc.cloudera.com:8080/7584
Reviewed-by: Michael Percy <e07a1fd797b473a9c849e618aa2ce06d8055760b@cloudera.com>
Tested-by: jenkins

cloudera/kudu,helifu/kudu,andrwng/kudu,InspurUSA/kudu,cloudera/kudu,EvilMcJerkface/kudu,helifu/kudu,InspurUSA/kudu,andrwng/kudu,EvilMcJerkface/kudu,andrwng/kudu,helifu/kudu,helifu/kudu,helifu/kudu,helifu/kudu,cloudera/kudu,cloudera/kudu,andrwng/kudu,cloudera/kudu,EvilMcJerkface/kudu,andrwng/kudu,InspurUSA/kudu,andrwng/kudu,andrwng/kudu,InspurUSA/kudu,InspurUSA/kudu,InspurUSA/kudu,EvilMcJerkface/kudu,InspurUSA/kudu,EvilMcJerkface/kudu,EvilMcJerkface/kudu,EvilMcJerkface/kudu,andrwng/kudu,EvilMcJerkface/kudu,EvilMcJerkface/kudu,InspurUSA/kudu,helifu/kudu,helifu/kudu,cloudera/kudu,InspurUSA/kudu,helifu/kudu,cloudera/kudu,cloudera/kudu,cloudera/kudu,andrwng/kudu