patch 8.1.1877: graduated features scattered

Problem:    Graduated features scattered.
Solution:   Put graduated and obsolete features together.
diff --git a/src/version.c b/src/version.c
index ed8cc6b..b7d09aa 100644
--- a/src/version.c
+++ b/src/version.c
@@ -770,6 +770,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1877,
+/**/
     1876,
 /**/
     1875,