updated for version 7.3.409
Problem:    The license in pty.c is unclear.
Solution:   Add a comment about the license.
diff --git a/src/version.c b/src/version.c
index bd91554..110f14f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -715,6 +715,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    409,
+/**/
     408,
 /**/
     407,