icingaweb2/application/views/scripts/about/index.phtml

<div class="content">
    <h1>Icinga Web 2</h1>
    <?php
    $versionInfo = array();
    if ($version !== false) {
        foreach (array(
            'appVersion'    => $this->translate('Version: %s'),
            'gitCommitID'   => $this->translate('Git commit ID: %s'),
            'gitCommitDate' => $this->translate('Git commit date: %s')
        ) as $key => $label) {
            if (array_key_exists($key, $version) && null !== ($value = $version[$key])) {
                $versionInfo[] = sprintf($label, htmlspecialchars($value));
            }
        }
    }

    echo (
        0 === count($versionInfo)
            ? '<p class="message-error">' . $this->translate(
                'Can\'t determine Icinga Web 2\'s version'
            )
            : '<p>' . nl2br(implode("\n", $versionInfo), false)
    ) . '</p>';
    ?>
</div>