patch 8.2.3843: dep3patch files are not recognized

Problem:    Dep3patch files are not recognized.
Solution:   Recognize dep3patch files by their location and content. (James
            McCoy, closes #9367)
diff --git a/src/version.c b/src/version.c
index d90560f..0e2a229 100644
--- a/src/version.c
+++ b/src/version.c
@@ -750,6 +750,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3843,
+/**/
     3842,
 /**/
     3841,