patch 8.0.1208: 'statusline' drops empty group with highlight change

Problem:    'statusline' drops empty group with highlight change.
Solution:   Do not drop an empty group if it changes highlighting. (Marius
            Gedminas, closes #2228)
diff --git a/src/version.c b/src/version.c
index 040d324..d9a3fdb 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1208,
+/**/
     1207,
 /**/
     1206,