patch 7.4.1768
Problem:    Arguments of setqflist() are not checked properly.
Solution:   Add better checks, add a test. (Nikolai Pavlov, Hirohito Higashi,
            closes #661)
diff --git a/src/version.c b/src/version.c
index 1b15ded..9c03872 100644
--- a/src/version.c
+++ b/src/version.c
@@ -749,6 +749,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1768,
+/**/
     1767,
 /**/
     1766,