title: What is the first variable in the options of ESLint's max-len setting?
body: <p>ESLint's <a href="http://eslint.org/docs/rules/max-len#options" rel="noreferrer">max-len setting</a> allows me to input two required options:</p>
  
  <ol>
  <li>The total number of characters allowed on each line of code. This character count includes indentation.</li>
  <li>The character count to use whenever a tab character is encountered.</li>
  </ol>
  
  <p>However, when I look at the code they provide, it's:</p>
  
  <pre><code>"max-len": [2, 80, 4]
  </code></pre>
  
  <p>...or three options. Above this they reference a 2-character tab, which they show as:</p>
  
  <pre><code>"max-len": [1, 80, 2]
  </code></pre>
  
  <p>I assume the second and third options set the total characters allowed (80 in this case) and the length of a tab (2 or 4). What is the first option <code>[1,...</code> or <code>[2,...</code> defining?</p>