patch 8.0.0873: in terminal cannot use CTRL-\ CTRL-N to start Visual mode

Problem:    In a terminal window cannot use CTRL-\ CTRL-N to start Visual
            mode.
Solution:   After CTRL-\ CTRL-N enter Terminal-Normal mode for one command.
diff --git a/src/version.c b/src/version.c
index b3f3eb5..54acc59 100644
--- a/src/version.c
+++ b/src/version.c
@@ -770,6 +770,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    873,
+/**/
     872,
 /**/
     871,