make test_strftime pass

Author: qunaibit

graalpython/com.oracle.graal.python.test/src/tests/unittest_tags/test_strftime.txt

@@ -1,3 +1,4 @@
+*graalpython.lib-python.3.test.test_strftime.StrftimeTest.test_strftime
 *graalpython.lib-python.3.test.test_strftime.Y1900Tests.test_y_1900
 *graalpython.lib-python.3.test.test_strftime.Y1900Tests.test_y_after_1900
 *graalpython.lib-python.3.test.test_strftime.Y1900Tests.test_y_before_1900

graalpython/com.oracle.graal.python.test/src/tests/unittest_tags/test_time.txt

@@ -17,14 +17,20 @@
 *graalpython.lib-python.3.test.test_time.TimeTestCase.test_clock_monotonic
 *graalpython.lib-python.3.test.test_time.TimeTestCase.test_clock_realtime
 *graalpython.lib-python.3.test.test_time.TimeTestCase.test_clock_settime
+*graalpython.lib-python.3.test.test_time.TimeTestCase.test_conversions
+*graalpython.lib-python.3.test.test_time.TimeTestCase.test_ctime
+*graalpython.lib-python.3.test.test_time.TimeTestCase.test_ctime_without_arg
 *graalpython.lib-python.3.test.test_time.TimeTestCase.test_default_values_for_zero
 *graalpython.lib-python.3.test.test_time.TimeTestCase.test_gmtime_without_arg
+*graalpython.lib-python.3.test.test_time.TimeTestCase.test_insane_timestamps
+*graalpython.lib-python.3.test.test_time.TimeTestCase.test_localtime_failure
 *graalpython.lib-python.3.test.test_time.TimeTestCase.test_localtime_without_arg
 *graalpython.lib-python.3.test.test_time.TimeTestCase.test_mktime
 *graalpython.lib-python.3.test.test_time.TimeTestCase.test_mktime_error
 *graalpython.lib-python.3.test.test_time.TimeTestCase.test_monotonic_settime
 *graalpython.lib-python.3.test.test_time.TimeTestCase.test_perf_counter
 *graalpython.lib-python.3.test.test_time.TimeTestCase.test_pthread_getcpuclockid
+*graalpython.lib-python.3.test.test_time.TimeTestCase.test_sleep
 *graalpython.lib-python.3.test.test_time.TimeTestCase.test_strftime_bounding_check
 *graalpython.lib-python.3.test.test_time.TimeTestCase.test_strftime_format_check
 *graalpython.lib-python.3.test.test_time.TimeTestCase.test_strptime_bytes