the actual pid is in the 1st index of the pid array

Author: Isaiah Frantz

lib/octocatalog-diff/util/parallel.rb

@@ -130,7 +130,7 @@ def self.run_tasks_parallel(result, task_array, logger)
         # Waiting for children and handling results
         while pidmap.any?
           pidmap.each do |pid|
-            status = Process.waitpid2(pid, Process::WNOHANG)
+            status = Process.waitpid2(pid[0], Process::WNOHANG)
             next if status.nil?
             this_pid, exit_obj = status
             next unless this_pid && pidmap.key?(this_pid)