patch 8.2.3228: cannot use a simple block for the :command argument

Problem:    Cannot use a simple block for the :command argument. (Maarten
            Tournoij)
Solution:   Recognize a simple {} block. (issue #8623)
diff --git a/src/version.c b/src/version.c
index cdf5d4e..e38274e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3228,
+/**/
     3227,
 /**/
     3226,