title: How can you disable line numbers in git grep when you have grep.lineNumber=true?
body: <p>I have <code>grep.lineNumber=true</code> in my ~/.gitconfig because I almost always want to show them. Sometimes though, I want to disable them for a single command without editing the config file. Is there an option I can pass to git grep that disables line numbers? There are of course a few ways around it (see below), but I'm curious to know if there is a built-in solution.</p>
  <p>Some ways I've found to work around it:</p>
  <ol>
  <li>Pipe through another tool that removes the line numbers (depending on the situation e.g. <code>cut</code>, <code>awk</code>, <code>sed</code>, <code>grep</code>, etc)</li>
  <li>Use normal <code>grep</code> (or any of its variants like <code>egrep</code>), where I happen to not have this turned on by default</li>
  </ol>