patch 8.1.2367: registers are not sufficiently tested

Problem:    Registers are not sufficiently tested.
Solution:   Add a few more test cases. (Yegappan Lakshmanan, closes #5288)
diff --git a/src/version.c b/src/version.c
index 9d509f2..8040ad0 100644
--- a/src/version.c
+++ b/src/version.c
@@ -738,6 +738,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2367,
+/**/
     2366,
 /**/
     2365,