patch 8.2.1554: crash in normal test

Problem:    Crash in normal test.
Solution:   Skip adjusting marks if there are no folds.
diff --git a/src/version.c b/src/version.c
index 8155ffc..92c533c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1554,
+/**/
     1553,
 /**/
     1552,