Add some sanity tests for distant years.
Add some sanity tests for distant years.

Perl 5.11 broke y2038 but the tests didn't notice.

evalEmpire/y2038,chromatic/y2038,foxtacles/y2038,chromatic/y2038,schwern/y2038,schwern/y2038,bulk88/y2038,bulk88/y2038,chromatic/y2038,bulk88/y2038,evalEmpire/y2038,foxtacles/y2038