[Trivial Fix] Replace Chinese punctuation with English punctuation
[Trivial Fix] Replace Chinese punctuation with English punctuation

Curly quotes(Chinese punctuation) usually input from Chinese input method.
When read from english context, it makes some confusion.

Change-Id: I50fbabeaf95c1106cfba1ae23ce65dfda7752edd

openstack/openstack-ansible-galera_server,openstack/openstack-ansible-galera_server,os-cloud/openstack-ansible-galera_server,os-cloud/openstack-ansible-galera_server