patch 7.4.1709
Problem:    Mistake in #ifdef.
Solution:   Change PROOF_QUALITY to DRAFT_QUALITY. (Ken Takata)
diff --git a/src/version.c b/src/version.c
index 2f36539..18a89e4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -749,6 +749,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1709,
+/**/
     1708,
 /**/
     1707,