Leetcode-cn DOES NOT have dislike data

Author: Vigilans

lib/commands/show.js

@@ -156,6 +156,8 @@ function showProblem(problem, argv) {
     log.printf('* Likes:    %s', problem.likes);
   if (problem.dislikes)
     log.printf('* Dislikes: %s', problem.dislikes);
+  else
+    log.printf('* Dislikes: -');
   if (problem.totalAC)
     log.printf('* Total Accepted:    %s', problem.totalAC);
   if (problem.totalSubmit)