examples/example_waitid.rb in proc-wait3-1.9.1 vs examples/example_waitid.rb in proc-wait3-1.9.2

@@ -1,14 +1,17 @@
+# frozen_string_literal: true
+
 #######################################################################
 # example_waitid.rb
 #
 # Simple demonstration of the Process.waitid method. You can run this
 # code via the 'rake example_waitid' task.
 #
 # Modify as you see fit.
 #######################################################################
+require 'English'
 require 'proc/wait3'
 
-pid = fork{ sleep 2 }
+pid = fork { sleep 2 }
 p Time.now
 Process.waitid(Process::P_PID, pid, Process::WEXITED)
-p $?
+p $CHILD_STATUS