title: Using quote-like-operators or quotes in the perl's printf
body: <p>Reading perl sources I saw many times the next construction:</p>
  
  <pre><code>printf qq[%s\n], getsomestring( $_ );
  </code></pre>
  
  <p>But <em>usually</em> it is written as</p>
  
  <pre><code>printf "%s\n", getsomestring( $_ );
  </code></pre>
  
  <p>The question:</p>
  
  <ul>
  <li>is here any "good practice" what is the correct way, and if yes</li>
  <li>when is recommended to use the longer <code>qq[...]</code> vs the <code>"..."</code></li>
  <li>or it is only pure TIMTOWTDI?</li>
  </ul>
  
  <p>The <a href="http://perldoc.perl.org/perlop.html#Quote-Like-Operators" rel="nofollow">perlop</a> doesn't mention anything about this.</p>