updated for version 7.4a.040

Problem:    Win32: using uninitialized variable.
Solution:   (Yukihiro Nakadaira)

src/version.c

@@ -727,6 +727,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    40,
 /**/
     39,
 /**/