Issue #19990: Added tests for the imghdr module.
Based on patch by Claudiu Popa.
diff --git a/Lib/test/test_sundry.py b/Lib/test/test_sundry.py
index 2da3ac0..e99ca9e 100644
--- a/Lib/test/test_sundry.py
+++ b/Lib/test/test_sundry.py
@@ -6,7 +6,7 @@
 
 class TestUntestedModules(unittest.TestCase):
     def test_untested_modules_can_be_imported(self):
-        untested = ('bdb', 'encodings', 'formatter', 'imghdr',
+        untested = ('bdb', 'encodings', 'formatter',
                     'nturl2path', 'tabnanny')
         with support.check_warnings(quiet=True):
             for name in untested: