Merge pull request #18 from jasonpenny/fix-error-when-missing-team-permission

Fix pr.rb output when a review request exists for a team you don't have permission for

Author: jasonpenny

lib/github.rb

@@ -173,6 +173,8 @@ def self.puts_pull_request(pr, options = {})
     end
 
     pr["reviewRequests"].each do |rr|
+      next if rr.nil?
+
       if color
         puts_with_prefix.call " \e[33m\e[1m●\e[0m  #{rr["user"]}"
       else