Update setup.py

Author: arjunsuresh

setup.py

@@ -171,7 +171,7 @@ def get_sys_platform(self):
 
 def read_file(file_name, default=""):
     if os.path.isfile(file_name):
-        with open(file_name, "r") as f:
+        with open(file_name, "r", encoding="utf-8") as f:
             return f.read().strip()
     return default