patch 8.2.5167: get(Fn, 'name') on funcref returns special byte code

Problem:    get(Fn, 'name') on funcref returns special byte code.
Solution:   Use the printable name.

src/version.c

@@ -735,6 +735,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    5167,
 /**/
     5166,
 /**/