![chao liu](/assets/img/avatar_default.png)
Adhering to coding conventions. Refer to ``Code conventions`` at https://docs.openstack.org/contributor-guide/ for details. "." is synonymous with source in bash, but not in POSIX sh, so we should use "." if the script is run by "/bin/sh". "/bin/sh" is often used in cron. Change-Id: I0ee691d84a19f3f06f111d50e23c0c9c80ebd402