define an attribute syntax for storing country codes.
ds-cfg-country-string-attribute-syntax
ds-cfg-attribute-syntax
org.opends.server.schema.CountryStringSyntax
Indicates whether or not country code values are required to
strictly comply with the standard definition for this syntax.
When set to false, country codes will not be validated and, as
a result any string containing 2 characters will be acceptable.
true
ds-cfg-strict-format