patch 8.2.5051: check for autocmd_add() event argument is confusing

Problem:    Check for autocmd_add() event argument is confusing.
Solution:   Make the code more straightforward.
diff --git a/src/version.c b/src/version.c
index ba8688b..9df4167 100644
--- a/src/version.c
+++ b/src/version.c
@@ -735,6 +735,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    5051,
+/**/
     5050,
 /**/
     5049,