Link specifically to the UCD version 5.2.0.

Doc/library/unicodedata.rst

@@ -20,8 +20,8 @@ based on the :file:`UnicodeData.txt` file version 5.2.0 which is publicly
 available from ftp://ftp.unicode.org/.
 
 The module uses the same names and symbols as defined by the UnicodeData File
-Format 5.2.0 (see http://www.unicode.org/reports/tr44/).  It defines the
-following functions:
+Format 5.2.0 (see http://www.unicode.org/reports/tr44/tr44-4.html).
+It defines the following functions:
 
 
 .. function:: lookup(name)

Modules/unicodedata.c

@@ -1236,7 +1236,8 @@ this database is based on the UnicodeData.txt file version\n\
 5.2.0 which is publically available from ftp://ftp.unicode.org/.\n\
 \n\
 The module uses the same names and symbols as defined by the\n\
-UnicodeData File Format 5.2.0 (see http://www.unicode.org/reports/tr44/).");
+UnicodeData File Format 5.2.0 (see\n\
+http://www.unicode.org/reports/tr44/tr44-4.html).");
 
 PyMODINIT_FUNC
 initunicodedata(void)