patch 8.1.1203: some autocmd tests are old style

Problem:    Some autocmd tests are old style.
Solution:   Turn the tests into new style. (Yegappan Lakshmanan, closes #4295)
diff --git a/src/version.c b/src/version.c
index f865c3d..2b90f01 100644
--- a/src/version.c
+++ b/src/version.c
@@ -772,6 +772,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1203,
+/**/
     1202,
 /**/
     1201,