add -cleanup to the template script accordingly

releng/template_new_releng

@@ -18,14 +18,20 @@ print_help() {
  cat << HLP
 Usage:
  $0 -help
+
 # using a config file ${CONFFILE}
  $0 -rc [-keep]
+
 # without using a config file
- $0
+ $0 your_own_options_here
+
+# cleanup test generated data directory and exit
+ $0 -cleanup
 HLP
 }
 
 #####################################################################
+print_help
 #if [ ! -x "${XOR}" ]; then
 # printf "$0: Not found or not an executable: $XOR\n"
 # exit 50