Fix missing comma in setup.py (#2)

Author: asuhan

setup.py

@@ -95,7 +95,7 @@ def make_relative_rpath(path):
     description='XLA bridge for PyTorch',
     url='https://github.com/pytorch/xla',
     author='Alex Suhan, Davide Libenzi',
-    author_email='[email protected], [email protected]'
+    author_email='[email protected], [email protected]',
     # Exclude the build files.
     packages=find_packages(exclude=['build']),
     ext_modules=[