updated for version 7.4.406

Problem:    Test 72 and 100 fail on MS-Windows.
Solution:   Set fileformat to unix in the tests. (Taro Muraoka)

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    406,
 /**/
     405,
 /**/