patch 9.0.0886: horizontal mouse scroll only works in the GUI

Problem:    Horizontal mouse scroll only works in the GUI.
Solution:   Make horizontal mouse scroll also work in a terminal.
            (Christopher Plewright, closes #11448)
diff --git a/src/version.c b/src/version.c
index 61ad4c7..d7f4808 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    886,
+/**/
     885,
 /**/
     884,