updated for version 7.3.240

Problem:    External commands can't use pipes on MS-Windows.
Solution:   Implement pipes and use them when 'shelltemp' isn't set. (Vincent
            Berthoux)

src/version.c

@@ -709,6 +709,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    240,
 /**/
     239,
 /**/