patch 8.2.4356: command line completion functions are very long

Problem:    Command line completion functions are very long.
Solution:   Refactor into multiple functions. (Yegappan Lakshmanan,
            closes #9753)
diff --git a/src/version.c b/src/version.c
index 1fc3bc6..590aeb7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4356,
+/**/
     4355,
 /**/
     4354,