Fix issue12938 - Update the docstring of html.escape. Include the information on single quote.
diff --git a/Lib/html/__init__.py b/Lib/html/__init__.py
index 335d214..02652ef 100644
--- a/Lib/html/__init__.py
+++ b/Lib/html/__init__.py
@@ -13,7 +13,8 @@
"""
Replace special characters "&", "<" and ">" to HTML-safe sequences.
If the optional flag quote is true (the default), the quotation mark
- character (") is also translated.
+ characters, both double quote (") and single quote (') characters are also
+ translated.
"""
if quote:
return s.translate(_escape_map_full)