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)

src/version.c

@@ -737,6 +737,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2340,
 /**/
     2339,
 /**/