return codes are available on all platforms, not just on Unix
diff --git a/Lib/subprocess.py b/Lib/subprocess.py
index 3a3020d..54702a0 100644
--- a/Lib/subprocess.py
+++ b/Lib/subprocess.py
@@ -27,10 +27,9 @@
"""subprocess - Subprocesses with accessible I/O streams
-This module allows you to spawn processes and connect to their
-input/output/error pipes and obtain their return codes under Unix.
-This module intends to replace several other, older modules and
-functions, like:
+This module allows you to spawn processes, connect to their
+input/output/error pipes, and obtain their return codes. This module
+intends to replace several other, older modules and functions, like:
os.system
os.spawn*