updated for version 7.3.661

Problem:    SEGV in Python code.
Solution:   Initialize len to zero.  Use the right function depending on
            version. (Maxim Philippov)

src/version.c

@@ -719,6 +719,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    661,
 /**/
     660,
 /**/