SF bug #1623890, fix argument name in docstring
diff --git a/Lib/subprocess.py b/Lib/subprocess.py
index 5d79ea6..9816122 100644
--- a/Lib/subprocess.py
+++ b/Lib/subprocess.py
@@ -166,7 +166,7 @@
communicate(input=None)
Interact with process: Send data to stdin. Read data from stdout
and stderr, until end-of-file is reached. Wait for process to
- terminate. The optional stdin argument should be a string to be
+ terminate. The optional input argument should be a string to be
sent to the child process, or None, if no data should be sent to
the child.