merge revision(s) 2f916812,ac458f6b:

	Skip test_europe_lisbon on macOS

	until we figure out why it's failing.
	---
	 test/ruby/test_time_tz.rb | 1 +
	 1 file changed, 1 insertion(+)

	Historical timezones of Lisbon in tzdata are unstable

	---
	 test/ruby/test_time_tz.rb | 3 +--
	 1 file changed, 1 insertion(+), 2 deletions(-)