patch 9.0.0896: test for home key fails when 'term' is "tmux"

Problem:    Test for home key fails when 'term' is "tmux".
Solution:   Only save termcap entries that exist.  Adjust code for xHome to
            what xterm uses. (closes #11566)
diff --git a/src/version.c b/src/version.c
index fdccde9..e3af095 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    896,
+/**/
     895,
 /**/
     894,