title: Is stdin, stdout, stderr buffered or unbuffered in Lua?
body: <p>I can't really find much information out there that mentions this. Are these standard io descriptors setup to be buffered or unbuffered by default in Lua? Can I switch from one mode to the other if desired?</p>
  
  <p>For instance, in python it provides something like <code>sys.stdin.detach</code> for making it unbuffered.</p>