Doc: Fix typo. (GH-11315)

From: https://mail.python.org/pipermail/docs/2018-December/038583.html

diff --git a/Doc/library/unittest.rst b/Doc/library/unittest.rst
index acf9b49548b3c47a1d940c1be1e56cdd8a25833c..c5d19858e1154984edf436f49f3a3d7e30e239e8 100644 (file)
--- a/Doc/library/unittest.rst
+++ b/Doc/library/unittest.rst
@@ -27,7 +27,7 @@ object-oriented way:
 
 test fixture
    A :dfn:`test fixture` represents the preparation needed to perform one or more
-   tests, and any associate cleanup actions.  This may involve, for example,
+   tests, and any associated cleanup actions.  This may involve, for example,
    creating temporary or proxy databases, directories, or starting a server
    process.