[SOLVED] CI 3.1.0 ImageMagick not working

OK, further experimentation and managed a very quick solution:

file: /CodeIgniter-3.1.0/system/libraries/Image_lib.php

PHP Code:

// line: 891
// exec() might be disabled
if (function_usable('exec'))
{
  // ADDED THIS LINE TO REMOVE SINGLE QUOTES
  $cmd = str_replace("'", "", $cmd); 
  @exec($cmd, $output, $retval);
}