updated for version 7.4.428
Problem:    executable() may return a wrong result on MS-Windows.
Solution:   Change the way SearchPath() is called. (Yasuhiro Matsumoto, Ken
            Takata)
diff --git a/src/version.c b/src/version.c
index d43534a..17add43 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    428,
+/**/
     427,
 /**/
     426,