writing convention: do not use “-y” for package install
writing convention: do not use “-y” for package install

refer to:
https://docs.openstack.org/contributor-guide/writing-style/ \
code-conventions.html

Change-Id: Ifb8f5a3a5cf66395acd8e65cc77cb031d775e504

openstack/storlets,openstack/storlets,openstack/storlets,openstack/storlets