Remove the previous workaround for sys.exit()'s wrong exit code with newint

Author: edschofield

futurize.py

@@ -17,11 +17,8 @@
 The software is distributed under an MIT licence. See LICENSE.txt.
 """
 
-import os
+import sys
 
 from libfuturize.main import main
 
-# We use os._exit() because sys.exit() seems to interact badly with
-# subprocess.check_output() ...
-os._exit(main())
-
+sys.exit(main())

pasteurize.py

@@ -16,11 +16,8 @@
 The software is distributed under an MIT licence. See LICENSE.txt.
 """
 
-import os
+import sys
 
 from libpasteurize.main import main
 
-# We use os._exit() because sys.exit() seems to interact badly with
-# subprocess.check_output() ...
-os._exit(main())
-
+sys.exit(main())