patch 8.1.2340: quickfix test fails under valgrind and asan

Problem:    Quickfix test fails under valgrind and asan.
Solution:   Make sure long line does not overflow IObuff. (Dominique Pelle,
            closes #5263)  Put back fix for large terminals. (Yegappan
            Lakshmanan, closes #5264)
diff --git a/src/version.c b/src/version.c
index 17517f5..bebf220 100644
--- a/src/version.c
+++ b/src/version.c
@@ -738,6 +738,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2340,
+/**/
     2339,
 /**/
     2338,