README.md in docker-api-1.18.0 vs README.md in docker-api-1.19.0

@@ -331,34 +331,34 @@
 # Commit the Container and run a new command. The second argument is the number
 # of seconds the Container should wait before stopping its current command.
 container.run('pwd', 10)
 # => Docker::Image { :id => 4427be4199ac, :connection => Docker::Connection { :url => tcp://localhost, :options => {:port=>2375} } }
 
-# Run an Exec instance inside the container and capture its output
+# Run an Exec instance inside the container and capture its output and exit status
 container.exec('date')
-# => [["Wed Nov 26 11:10:30 CST 2014\n"], []]
+# => [["Wed Nov 26 11:10:30 CST 2014\n"], [], 0]
 
-# Launch an Exec instance without capturing its output
+# Launch an Exec instance without capturing its output or status
 container.exec('./my_service', detach: true)
 # => Docker::Exec { :id => be4eaeb8d28a, :connection => Docker::Connection { :url => tcp://localhost, :options => {:port=>2375} } }
 
 # Parse the output of an Exec instance
 container.exec('find / -name *') { |stream, chunk| puts "#{stream}: #{chunk}" }
 stderr: 2013/10/30 17:16:24 Unable to locate find / -name *
-# => [[], ["2013/10/30 17:16:24 Unable to locate find / -name *\n"]]
+# => [[], ["2013/10/30 17:16:24 Unable to locate find / -name *\n"], 1]
 
 # Run an Exec instance by grab only the STDOUT output
 container.exec('date', stderr: false)
-# => [["Wed Nov 26 11:10:30 CST 2014\n"], []]
+# => [["Wed Nov 26 11:10:30 CST 2014\n"], [], 0]
 
 # Pass input to an Exec instance command via Stdin
 container.exec('cat', stdin: StringIO.new("foo\nbar\n"))
-# => [["foo\nbar\n"], []]
+# => [["foo\nbar\n"], [], 0]
 
 # Get the raw stream of data from an Exec instance
 command = ["bash", "-c", "if [ -t 1 ]; then echo -n \"I'm a TTY!\"; fi"]
 container.exec(command, tty: true)
-# => [["I'm a TTY!"], []]
+# => [["I'm a TTY!"], [], 0]
 
 # Delete a Container.
 container.delete(:force => true)
 # => nil