`metadata` aliases update.

setuptools/config.py

@@ -21,6 +21,7 @@ class ConfigHandler(object):
     aliases = {}
     """Options aliases.
     For compatibility with various packages. E.g.: d2to1 and pbr.
+    Note: `-` in keys is replaced with `_` by config parser.
 
     """
 
@@ -227,7 +228,6 @@ class ConfigMetadataHandler(ConfigHandler):
     section_prefix = 'metadata'
 
     aliases = {
-        'author-email': 'author_email',
         'home_page': 'url',
         'summary': 'description',
         'classifier': 'classifiers',

setuptools/tests/test_config.py

@@ -92,7 +92,7 @@ class TestMetadata:
             tmpdir,
             '[metadata]\n'
             'author-email = test@test.com\n'
-            'home_page = http://test.test.com/test/\n'
+            'home-page = http://test.test.com/test/\n'
             'summary = Short summary\n'
             'platform = a, b\n'
             'classifier =\n'