patch 8.1.0814: :mksession cannot handle a very long 'runtimepath'

Problem:    :mksession cannot handle a very long 'runtimepath'. (Timothy
            Madden)
Solution:   Expand each part separately, instead of the whole option at once.
            (Christian Brabandt, closes #3466)

src/version.c

@@ -787,6 +787,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    84,
 /**/
     813,
 /**/