fix utf8 test

-> pt_br Locale day-names were changed to lowercase letters in this commit:
https://sourceware.org/git/?p=glibc.git;a=commit;h=686db256f640372df81242bf20d458f54e069f56

Author: FlorianMickler

tests/test_liborgdate_utf8.py

@@ -33,8 +33,8 @@ def setUp(self):
 		self.year = 2016
 		self.month = 5
 		self.day = 7
-		self.text = u'<2016-05-07 Sáb>'
-		self.textinactive = u'[2016-05-07 Sáb]'
+		self.text = u'<2016-05-07 sáb>'
+		self.textinactive = u'[2016-05-07 sáb]'
 
 	def test_OrdDate_str_unicode_active(self):
 		with self.setlocale(self.UTF8_LOCALE):