fix version number use (fix r86, r90 from trunk)

git-svn-id: http://arthurdejong.org/svn/python-stdnum/python-stdnum-0.6@91 9dea7c4f-944c-4273-ac1a-574ede026edc

diff --git a/setup.py b/setup.py
index dd4e7c4..5ac3cf5 100644
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@ if 'sdist' in sys.argv:
     os.umask(int('022', 8))

 setup(name='python-stdnum',
-      version=stdnum.__version,
+      version=stdnum.__version__,
       packages=find_packages(),
       package_data={'stdnum': ['*.dat']},
       author='Arthur de Jong',