title: Vim - count lines in selected range
body: <p>I want to count lines in a range, not matter what range, but let it be, say, a visual block.
  What is the shortest way to do it. All that comes to my mind is something like: <code>'&lt;,'&gt;s/.//n</code>
  but I don't believe it is the shortest way.</p>
  
  <p>So, can somebody give me a hint? Thanks in advance.</p>