updated for version 7.3.765

Problem:    Segfault when doing "cclose" on BufUnload in a python function.
            (Sean Reifschneider)
Solution:   Skip window with NULL buffer. (Christian Brabandt)

src/version.c

@@ -725,6 +725,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    765,
 /**/
     764,
 /**/