patch 8.1.2161: mapping test fails

Problem:    Mapping test fails.
Solution:   Run the test separately.
diff --git a/src/version.c b/src/version.c
index 9135fe7..f84340d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -754,6 +754,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2161,
+/**/
     2160,
 /**/
     2159,