diff --git a/lib/build/mkdocs/script/vendor-licensing.php b/lib/build/mkdocs/script/vendor-licensing.php
index 16944c63..250d820f 100755
--- a/lib/build/mkdocs/script/vendor-licensing.php
+++ b/lib/build/mkdocs/script/vendor-licensing.php
@@ -2,47 +2,114 @@
 <?php
 
 /*
- * composer packages license information to markdown
+ * this file is part of pipelines
  *
- * obtain license information from composer packages
- * and turn them into a markdown report for the
- * pipelines HTML documentation
- *
- * markdown is written to stdout
+ * vendor-licensing - composer packages license information markdown report
  *
- * usage: script/vendor-licensing.php [--dev] [<composer-dir>]
+ * usage: script/vendor-licensing.php [--dev] [--] [<composer-dir>]
  *
  *   --dev            include require-dev packages
  *   <composer-dir>  path to directory with the composer.json to use
+ *
+ * obtain license information from composer packages
+ * and turn them into a markdown report for the
+ * pipelines HTML documentation
+ *
+ * markdown is written to stdout by default
  */
 
-$config['dev'] = false;
-$config['composer_dir'] = __DIR__ . '/../../../..';
+function _start()
+{
+    // --dev : include require-dev packages
+    $config['dev'] = false;
+    // <composer-dir> : directory having the composer.json
+    $config['composer_dir'] = '';
+    $config['composer_filename'] = 'composer.json';
 
-if (isset($argv[1]) && '--dev' === $argv[1]) {
-    $config['dev'] = true;
-    array_splice($argv, 1, 1);
-}
+    $argv = $_SERVER['argv'];
 
-if (isset($argv[1]) && '' !== $argv[1]) {
-    $config['composer_dir'] = $argv[1];
-}
+    if (isset($argv[1]) && '--dev' === $argv[1]) {
+        $config['dev'] = true;
+        array_splice($argv, 1, 1);
+    }
+
+    if (isset($argv[1]) && '--' === $argv[1]) {
+        array_splice($argv, 1, 1);
+    }
+
+    if (isset($argv[1])) {
+        $buffer = realpath(trim($argv[1]));
+        is_string($buffer) && is_dir($buffer)
+        or trigger_error(sprintf('not a directory: %s', trim($argv[1])), E_USER_ERROR);
+        $config['composer_dir'] = $buffer;
+        unset($buffer);
+        array_splice($argv, 1, 1);
+    }
+
+    isset($argv[1])
+    and trigger_error(sprintf("unknown option, argument or parameter: '%s'", $argv[1]), E_USER_ERROR);
+
+    $srcDir = realpath($config['composer_dir']);
+    is_string($srcDir) && is_dir($srcDir)
+    or trigger_error(sprintf('composer-dir not a directory: %s', $config['composer_dir']), E_USER_ERROR);
+
+    $composerFilePath = $srcDir . '/' . $config['composer_filename'];
+    $project = json_decode((string)@file_get_contents($composerFilePath), true);
+    is_array($project)
+    or trigger_error(sprintf("not a composer.json: '%s'", $composerFilePath), E_USER_ERROR);
 
-$composerFile = $config['composer_dir'] . '/composer.json';
-$project = json_decode((string)@file_get_contents($composerFile), true);
-if (!is_array($project)) {
-    fprintf(STDERR, "fatal: not a composer.json: '%s'\n", $composerFile);
-    exit(1);
+    $project += array('require' => array(), 'require-dev' => array());
+
+    $require = $project['require'];
+    $config['dev'] && $require += $project['require-dev'];
+    $pkgs = packages($require, dirname($composerFilePath) . '/vendor');
+
+    tpl_render_pkgs($pkgs);
+
+    // done
+    return 0;
 }
-$project += array('require' => array(), 'require-dev' => array());
 
-$require = $project['require'];
-$config['dev'] && $require += $project['require-dev'];
-$pkgs = packages($require, dirname($composerFile) . '/vendor');
+register_shutdown_function(function ($_start) {
+
+    $start = $_SERVER['REQUEST_TIME'];
+    if (!is_float($start)) {
+        $start = isset($_SERVER['REQUEST_TIME_FLOAT']) && is_float($_SERVER['REQUEST_TIME_FLOAT'])
+            ? $_SERVER['REQUEST_TIME_FLOAT']
+            : $_start;
+    }
+    $_SERVER['REQUEST_TIME'] = (int)$_SERVER['REQUEST_TIME_FLOAT'] = $_start;
+
+    $argv = $_SERVER['argv'];
+    if (!is_array($argv)) {
+        $argv = array();
+    }
+    $argv = array_filter($argv, 'is_string');
+    $_SERVER['argv'] = $argv;
+
+    set_error_handler(function ($type, $message, $file, $line) {
+        if ($type === E_USER_ERROR) {
+            throw new ErrorException($message, 0, $type, $file, $line);
+        }
+        return false;
+    });
+
+    $error = null;
+    try {
+        $result = _start();
+    } catch (Exception $error) {
+        vfprintf(STDERR, "fatal: %s\n", array_slice(explode("\n", $error->getMessage()), 0, 1));
+    }
 
-tpl_render_pkgs($pkgs);
+    $time = microtime(true) - $_start;
+    $php = vsprintf('%d.%d.%d', sscanf(PHP_VERSION, '%d.%d.%d'));
+    fprintf(STDERR, "%s: took %.5fs (php %s)\n", $argv[0], $time, $php);
 
-// done
+    if (false === empty($result)) {
+        exit(2);
+    }
+    exit($error ? 1 : 0);
+}, microtime(true));
 
 /**
  * render packages as markdown
@@ -60,7 +127,7 @@ function tpl_render_pkgs(array $pkgs)
 
 
 ```
-<?= rtrim(file_get_contents($lic_file)), "\n"; ?>
+<?= strtr(rtrim(file_get_contents($lic_file)), '`', '#'), "\n"; ?>
 ```
 
 #### SPDX
@@ -128,7 +195,7 @@ function packages(array $require, $vendorFolder)
         if (!is_dir($dir)) { // filter non-project packages, e.g. php and extensions
             continue;
         }
-        $composer = find_file_recursive($dir, 'composer.json');
+        $composer = find_file_down($dir, 'composer.json');
         if (null === $composer) {
             throw new UnexpectedValueException(sprintf('Unable to find composer.json in %s', $pkg));
         }
@@ -151,7 +218,7 @@ function packages(array $require, $vendorFolder)
  *
  * @return string|null file found or null in case not found
  */
-function find_file_recursive($folder, $file)
+function find_file_down($folder, $file)
 {
     $folders = array($folder);
     while ($folder = array_pop($folders)) {
@@ -169,24 +236,62 @@ function find_file_recursive($folder, $file)
 }
 
 /**
- * find license file in a folder
- *
  * @param string $folder
+ * @param string|string[] ...$file
  *
- * @return string path to license file
+ * @return null|string
  */
-function find_license_file($folder)
+function find_file($folder, $file)
 {
-    $files = array(
-        'COPYING',
-        'LICENSE',
-    );
+    $files = flatten(array_slice(func_get_args(), 1));
+    if (empty($files)) {
+
+        return null;
+    }
 
     foreach ($files as $file) {
         if (is_file($folder . '/' . $file)) {
+
             return $folder . '/' . $file;
         }
     }
 
+    return null;
+}
+
+/**
+ * @param array $args
+ *
+ * @return array
+ */
+function flatten(array $args)
+{
+    $flattened = array();
+
+    foreach ($args as $arg) {
+        $values = is_array($arg) ? flatten($arg) : array($arg);
+        foreach ($values as $value) {
+            $flattened[] = $value;
+        }
+    }
+
+    return $flattened;
+}
+
+/**
+ * find license file in a folder
+ *
+ * @param string $folder
+ *
+ * @return string path to license file
+ */
+function find_license_file($folder, array $files = array('COPYING', 'LICENSE'))
+{
+    $license = find_file($folder, $files);
+    if (null !== $license) {
+
+        return $license;
+    }
+
     throw new RuntimeException(sprintf('Unable to find license file in "%s"', $folder));
 }