Include license files in built wheel

Signed-off-by: Philippe Ombredanne <pombredanne@nexb.com>

Author: pombredanne

setup.cfg

@@ -2,14 +2,14 @@
 universal = 1
 
 [metadata]
-license_filea =
+license_files =
     publicsuffix2.LICENSE
     AUTHORS.rst
     CHANGELOG.rst
     README.rst
 
 [aliases]
-release = clean --all sdist --formats=bztar,zip,gztar bdist_wheel register upload 
+release = clean --all sdist bdist_wheel register upload 
 
 [tool:pytest]
 norecursedirs =