[Python-checkins] Fix typo -- missing "not" (GH-5528) (GH-5531)

[Raymond Hettinger]

https://github.com/python/cpython/commit/231fa23f3fe83ca3738727d45009916926d31216
commit: 231fa23f3fe83ca3738727d45009916926d31216
branch: 3.6
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: Raymond Hettinger <rhettinger at users.noreply.github.com>
date: 2018-02-04T10:16:33-08:00
summary:

Fix typo -- missing "not" (GH-5528) (GH-5531)

files:
M Doc/library/collections.rst

diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst
index 97f513533ed8..82ba05737413 100644
--- a/Doc/library/collections.rst
+++ b/Doc/library/collections.rst
@@ -514,7 +514,7 @@ or subtracting from an empty counter.
         Rotate the deque *n* steps to the right.  If *n* is negative, rotate
         to the left.
 
-        When the deque is empty, rotating one step to the right is equivalent
+        When the deque is not empty, rotating one step to the right is equivalent
         to ``d.appendleft(d.pop())``, and rotating one step to the left is
         equivalent to ``d.append(d.popleft())``.