Update __init__.py

fix pylint messages

Author: Hossein Pourbozorg

arabic_reshaper/__init__.py

@@ -1,5 +1,6 @@
+import os
+
 from .arabic_reshaper import reshape, default_reshaper, ArabicReshaper
 
-import os
 
 exec(open(os.path.join(os.path.dirname(__file__), '__version__.py')).read())