Fix typo in re.escape documentation (pythonGH-14722)

rdipietro · miss-islington · commit 7cf1b00ce684 · 2019-07-13T08:35:22.000Z
(cherry picked from commit fb6c1f8) Co-authored-by: Robert DiPietro <rdipietro@gmail.com>
diff --git a/Doc/library/re.rst b/Doc/library/re.rst
@@ -942,7 +942,7 @@ form.
       >>> print('|'.join(map(re.escape, sorted(operators, reverse=True))))
       /|\-|\+|\*\*|\*
 
-   This functions must not be used for the replacement string in :func:`sub`
+   This function must not be used for the replacement string in :func:`sub`
    and :func:`subn`, only backslashes should be escaped.  For example::
 
       >>> digits_re = r'\d+'
