patch 8.0.0202: no test for invalid syntax group name

Problem:    No test for invalid syntax group name.
Solution:   Add a test for group name error and warning.
diff --git a/src/version.c b/src/version.c
index 8184b66..4ef7f4f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    202,
+/**/
     201,
 /**/
     200,