clean up package description in setup.py a little and fix indentation

setup.py

@@ -6,6 +6,7 @@ except ImportError:
 import os
 import stat
 import subprocess
+import textwrap
 import sys
 
 import platform
@@ -313,17 +314,16 @@ if include_debugger:
     setup_args['package_data']['Cython.Debugger.Tests'] = ['codefile', 'cfuncs.c']
 
 setup(
-  name = 'Cython',
-  version = version,
-  url = 'http://www.cython.org',
-  author = 'Robert Bradshaw, Stefan Behnel, Dag Seljebotn, Greg Ewing, et al.',
-  author_email = 'cython-devel@python.org',
-  description = "The Cython compiler for writing C extensions for the Python language.",
-  long_description = """\
+    name='Cython',
+    version=version,
+    url='http://www.cython.org',
+    author='Robert Bradshaw, Stefan Behnel, Dag Seljebotn, Greg Ewing, et al.',
+    author_email='cython-devel@python.org',
+    description="The Cython compiler for writing C extensions for the Python language.",
+    long_description=textwrap.dedent("""\
     The Cython language makes writing C extensions for the Python language as
-  easy as Python itself.  Cython is a source code translator based on the
-  well-known Pyrex_, but supports more cutting edge functionality and
-  optimizations.
+    easy as Python itself.  Cython is a source code translator based on Pyrex_,
+    but supports more cutting edge functionality and optimizations.
 
     The Cython language is very close to the Python language (and most Python
     code is also valid Cython code), but Cython additionally supports calling C
@@ -335,8 +335,8 @@ setup(
     code.
 
     .. _Pyrex: http://www.cosc.canterbury.ac.nz/greg.ewing/python/Pyrex/
-  """,
-  classifiers = [
+    """),
+    classifiers=[
         "Development Status :: 5 - Production/Stable",
         "Intended Audience :: Developers",
         "License :: OSI Approved :: Apache Software License",
@@ -351,10 +351,8 @@ setup(
         "Topic :: Software Development :: Libraries :: Python Modules"
     ],
 
-  scripts = scripts,
+    scripts=scripts,
     packages=packages,
-
-  py_modules = ["cython"],
-
+    py_modules=["cython"],
     **setup_args
-  )
+)