patch 8.2.0387: error for possible NULL argument to qsort()

Problem:    Error for possible NULL argument to qsort().
Solution:   Don't call qsort() when there is nothing to sort. (Dominique
            Pelle, closes #5780)

src/version.c

@@ -738,6 +738,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    387,
 /**/
     386,
 /**/