[fix] : script path

Author: Hayao0819

tools/clean.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-script_path="$( cd -P "$( dirname "$(readlink -f "$0")" )" && pwd )/.."
+script_path="$( cd -P "$( dirname "$(readlink -f "$0")" )" && cd .. && pwd )"
 
 cd "${script_path}"
 sudo make clean