title: makeself running startup script as sourced script
body: <p>I was making a self extractable archives using makeself and able to generate and run it.But i have to run the install script as sourced script.</p>
  <p>I am seeing an option to pass script argument in makeself command
  <code>makeself.sh [args] archive_dir file_name label startup_script [script_args]</code></p>
  <p>But none of my arguments are picking up. I have generated the archives using the following command
  <code>makeself.sh ./test ./test.run &quot;sample installer&quot; ./install.sh</code></p>
  <p>but how can I tell makeself to run install.sh file as sourced script</p>