updated for version 7.3.039

Problem:    Crash when using skk.vim plugin.
Solution:   Get length of expression evaluation result only after checking for
            NULL.  (Noriaki Yagi, Dominique Pelle)

src/version.c

@@ -714,6 +714,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    39,
 /**/
     38,
 /**/