Usage of commonlyUsed value for short generic non-location format
Deleted Component: xxx-spec
http://www.unicode.org/reports/tr35/#Date_Format_Patterns has various time zone display name patterns. Pattern 'v' is used for short generic non-location format, but no explanation whether commonlyUsed should be applied or not. We probably need another pattern for controlling the behavior.
Trac Comment 4 by —2011-05-19T16:41:53.000Z
Added the description "In the short format, metazone names are not used unless the commonlyUsed flag is on in the locale." for "v" in the Appendix F Date Field Symbol Table.
We do not support short generic non-location name from a meta zone without commonlyUsed flag off.