patch 9.0.1344: check for OSC escape sequence doesn't work

Problem:    Check for OSC escape sequence doesn't work.
Solution:   Fix typo in index.
diff --git a/src/version.c b/src/version.c
index caa0305..9176a8b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1344,
+/**/
     1343,
 /**/
     1342,