Fix cpp_args

Author: WrathfulSpatula

setup.py

@@ -8,9 +8,9 @@
 from distutils.core import setup, Extension
 
 if os.name == 'nt':
-    cpp_args = [' /std:c++17' ' /O3']
+    cpp_args = ['/std:c++17 /O3']
 else:
-    cpp_args = [' -std=c++17', ' -lpthread', ' -O3']
+    cpp_args = ['-std=c++17 -O3 -lpthread']
 
 README_PATH = os.path.join(os.path.abspath(os.path.dirname(__file__)), 'README.md')
 with open(README_PATH) as readme_file: