patch 9.0.1518: search stats not always visible when searching backwards

Problem:    Search stats not always visible when searching backwards.
Solution:   Do not display the top/bot message on top of the search stats.
            (Christian Brabandt, closes #12322, closes #12222)
diff --git a/src/version.c b/src/version.c
index dc17976..cf35324 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1518,
+/**/
     1517,
 /**/
     1516,