Exit cleanly when displaying categories

include/functions

@@ -2482,11 +2482,11 @@
         if [ ! "${INCLUDEDIR}" = "" ]; then
             InsertSection "Available test categories"
             for I in `ls ${INCLUDEDIR}/tests_* | xargs -n 1 basename | sed 's/tests_//' | grep -v "custom.template"`; do
-              echo "  - ${I}"
+              echo "${I}"
             done
         fi
         echo ""
-        exit 0
+        ExitClean
     }