TEZ-4355: Unit test precommit improvements - full coverage

Author: abstractdog

Jenkinsfile

@@ -72,6 +72,7 @@ pipeline {
                         set -e
 
                         TESTPATCHBIN="${WORKSPACE}/${YETUS}/precommit/src/main/shell/test-patch.sh"
+                        PERSONALITY="${WORKSPACE}/${SOURCEDIR}/build-tools/tez-personality.sh"
 
                         # this must be clean for every run
                         if [[ -d "${WORKSPACE}/${PATCHDIR}" ]]; then