Use utf-8 when reading README for package description.

QuLogic · QuLogic · commit 66efe2efaa32 · 2020-03-07T00:45:22.000-05:00
This otherwise will fail in non-UTF8 locales, and Python 3.6 (which doesn't coerce back to UTF8.) Fixes #16670.
diff --git a/setup.py b/setup.py
@@ -224,7 +224,7 @@ def run(self):
             fd.write(''.join(template_lines))
 
         # Use Readme as long description
-        with open('README.rst') as fd:
+        with open('README.rst', encoding='utf-8') as fd:
             long_description = fd.read()
 
     # Finally, pass this all along to distutils to do the heavy lifting.
