Link specifically to the UCD version 5.2.0.
diff --git a/Modules/unicodedata.c b/Modules/unicodedata.c
index 5bfdb3d..552dae5 100644
--- a/Modules/unicodedata.c
+++ b/Modules/unicodedata.c
@@ -1236,7 +1236,8 @@
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)