message: delete useless bin & directoriesls after test
diff: @@ -3,3 +3,6 @@ cp output/bin/pika src/redis-server
  cp output/conf/pika.conf tests/assets/default.conf
  tclsh tests/test_helper.tcl --clients 1 --single unit/$1
  +rm output/bin/pika src/redis-server
  +rm -rf ./log
  +rm -rf ./db
  