Relax tests to fix buildbot failure

Lib/test/test_os.py

@@ -1857,8 +1857,8 @@ class TermsizeTests(unittest.TestCase):
                 self.skipTest("failed to query terminal size")
             raise
 
-        self.assertGreater(size.columns, 0)
-        self.assertGreater(size.lines, 0)
+        self.assertGreaterEqual(size.columns, 0)
+        self.assertGreaterEqual(size.lines, 0)
 
     def test_stty_match(self):
         """Check if stty returns the same results

Lib/test/test_shutil.py

@@ -1276,8 +1276,8 @@ class TermsizeTests(unittest.TestCase):
         terminal, so let's check if it returns something sensible instead.
         """
         size = shutil.get_terminal_size()
-        self.assertGreater(size.columns, 0)
-        self.assertGreater(size.lines, 0)
+        self.assertGreaterEqual(size.columns, 0)
+        self.assertGreaterEqual(size.lines, 0)
 
     def test_os_environ_first(self):
         "Check if environment variables have precedence"