bin/restartable in restartable-0.2.2 vs bin/restartable in restartable-1.0.0

@@ -12,10 +12,16 @@
 Usege:
   #{op.program_name} [options] command [arg…]
 
   TEXT
 
+  op.on('-r', '--on-restart CMD', 'Run CMD on restart') do |cmd|
+    (options[:on_restart] ||= []) << proc{ system cmd }
+  end
+
+  op.separator nil
+
   op.on_tail('-h', '--help', 'Show full help') do
     puts option_parser.help
     exit
   end
 
@@ -25,13 +31,13 @@
   end
 end
 
 begin
   option_parser.order!
-  raise OptionParser::ParseError, 'No command to run' if ARGV.empty?
+  fail OptionParser::ParseError, 'No command to run' if ARGV.empty?
 rescue OptionParser::ParseError => e
-  abort "#{e.to_s}\n\n#{option_parser.help}"
+  abort "#{e}\n\n#{option_parser.help}"
 end
 
 Restartable.new(options) do
-  exec *ARGV
+  exec(*ARGV)
 end