Fix a typo in the module name

Also fix a typo in the test for check for such typos. =)

Author: brettcannon

libmodernize/fixes/__init__.py

@@ -31,7 +31,7 @@
     'libmodernize.fixes.fix_basestring',
     'libmodernize.fixes.fix_dict_six',
     'libmodernize.fixes.fix_filter',
-    'libermodernize.fixes.fix_imports_six',
+    'libmodernize.fixes.fix_imports_six',
     'libmodernize.fixes.fix_input_six',
     'libmodernize.fixes.fix_map',
     'libmodernize.fixes.fix_metaclass',

tests/test_fixes.py

@@ -13,7 +13,7 @@ def check_existence(prefix, module_names):
     dotted_prefix = prefix + '.'
     for module_name in module_names:
         if not module_name.startswith(dotted_prefix):
-            msg = '{0!r} does not start with {1!r}'.format(module_name, lib2to3_prefix)
+            msg = '{0!r} does not start with {1!r}'.format(module_name, prefix)
             raise AssertionError(msg)
         try:
             __import__(module_name)