Log Message:
Update p5-Time-modules to 2011.0517.
(contains fixes for PR#43823).

2011.0517:
	Bugfix from Sophie Hamilton: call tzset() when changing timezones.

	Bugfix: bail out of tests cleanly when tzset doesn't work.
2011.0505:
	Bugfix: make sure $ampm is defined so no undefined string warnings
	are issued.

	Honor the GMT flag when parsing time specs.  Patch from
	kris at shannon.id.au.

	Bugfix: RT#31477 noon & midnight would match in the middle of strings.

	Added %v conversion for Time::CTime

	Added tests to disprove invalid bug reports.