patch 8.1.0846: not easy to recognize the system Vim runs on

Problem:    Not easy to recognize the system Vim runs on.
Solution:   Add more items to the features list. (Ozaki Kiichi, closes #3855)
diff --git a/src/version.c b/src/version.c
index 3609fb0..f693b66 100644
--- a/src/version.c
+++ b/src/version.c
@@ -784,6 +784,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    846,
+/**/
     845,
 /**/
     844,