Conditionally adjust for quoting in comparing MySQL defaults
Conditionally adjust for quoting in comparing MySQL defaults

MariaDB 10.2 appears to not return server defaults with quotes
around integer values which breaks the assumption that we have
to de-quote server default values.  Make the dequoting
a regexp that will pass when the quotes are not present.

Change-Id: Ie5aeffcc3c550673a7fdd82769a315821cebb272
Closes-bug: #1750414

openstack/oslo.db,openstack/oslo.db