patch 9.0.1298: inserting register on the cmdline does not trigger incsearch

Problem:    Inserting a register on the command line does not trigger
            incsearch or update hlsearch.
Solution:   Have cmdline_insert_reg() return CMDLINE_CHANGED when appropriate
            and handle it correctly. (Ken Takata, closes #11960)
diff --git a/src/version.c b/src/version.c
index 26b4048..f50677b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1298,
+/**/
     1297,
 /**/
     1296,