openstack-unquoted file modes

- fixes all "WARNING: unquoted file mode on line"

- fixes 3-digit modes to 4-digits, leading 0
- fixes one instance of 5-digits, "02775 -> 2775"

does not fix other warnings in the same change on purpose

Change-Id: Ibfe0e456fc398da29019d69b8d8bcb39d1f56bae
Merge "openstack-unquoted file modes" into production