title: ghostscript 9.26 update breaks imagick readImage for multipage PDF
body: <p>Since the ghostscript update 9.25 -> 9.26 (on debian) last morning we get this error:</p>
  
  <pre><code>ErrorMessage: FailedToExecuteCommand 
  `'gs' -sstdout=%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT
   -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 
  '-sDEVICE=pngalpha' -dTextAlphaBits=4 -dGraphicsAlphaBits=4 '-r300x300' 
  -dFirstPage=1 -dLastPage=1 '-sOutputFile=/tmp/magick-39903EapVvuyNQxL4%d' 
  '-f/tmp/magick-39903VD0GMIpLPaIN' 
  '-f/tmp/magick-399031owlSOb4aOEw'' (-1) 
  @ error/delegate.c/ExternalDelegateCommand/462
  </code></pre>
  
  <p>When trying to read the first page of a multipage PDF:</p>
  
  <pre><code>$this-&gt;resource = new \Imagick();
  $this-&gt;resource-&gt;setResolution(300, 300);
  $this-&gt;resource-&gt;readImage($path . '[0]');
  </code></pre>
  
  <p>any idea how this problem can be solved?</p>
  
  <p>See: <a href="https://www.ghostscript.com/doc/9.26/History9.htm#Version9.26" rel="nofollow noreferrer">https://www.ghostscript.com/doc/9.26/History9.htm#Version9.26</a>
  See: <a href="https://secure.php.net/manual/en/imagick.readimage.php" rel="nofollow noreferrer">https://secure.php.net/manual/en/imagick.readimage.php</a></p>