use assert[Not]In where appropriate
A patch from Dave Malcolm.
diff --git a/Lib/test/test_tarfile.py b/Lib/test/test_tarfile.py
index dfa5553..792f2b9 100644
--- a/Lib/test/test_tarfile.py
+++ b/Lib/test/test_tarfile.py
@@ -485,7 +485,7 @@
def test_find_ustar_longname(self):
name = "ustar/" + "12345/" * 39 + "1234567/longname"
- self.assertTrue(name in self.tar.getnames())
+ self.assertIn(name, self.tar.getnames())
def test_find_regtype_oldv7(self):
tarinfo = self.tar.getmember("misc/regtype-old-v7")