При генерации XML пробел в первой строке - Joomla 3.x: Общие вопросы

	public static function sitemap() {
		header('Content-type: text/xml; charset=utf-8');
		// запрос в БД
		$db = JFactory::getDbo(); 
		$query = $db->getQuery(true);
		$query->select('*');
		$query->from('#__zaim');
		$query->where(' published  = 1 '); 
		$query->order('`id` DESC');
		$db->setQuery($query, 100);
		$list = $db->loadObjectList();
		$map = '<?xml version="1.0" encoding="UTF-8"?>'."\n";
		$map .= '<urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd">';
		foreach ($list as $key => $value) {
			$map .= '<url>';
			$map .= '<loc>https://zajm24online.ru/item/mfo_'.$value->id.'.html</loc>';
			$map .= '<lastmod>2017-04-12T14:41:54Z</lastmod>';
			$map .= '<changefreq>weekly</changefreq>';
			$map .= '<priority>0.5</priority>';
			$map .= '</url>';
		}
		$map .='</urlset>';
		$map .='</xml>';
		print($map);
		die();
	}  

<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd"><url><loc>https://zajm24online.ru/item/mfo_15.html</loc><lastmod>2017-04-12T14:41:54Z</lastmod><changefreq>weekly</changefreq><priority>0.5</priority></url><url><loc>https://zajm24online.ru/item/mfo_14.html</loc><lastmod>2017-04-12T14:41:54Z</lastmod><changefreq>weekly</changefreq><priority>0.5</priority></url><url><loc>https://zajm24online.ru/item/mfo_13.html</loc><lastmod>2017-04-12T14:41:54Z</lastmod><changefreq>weekly</changefreq><priority>0.5</priority></url><url><loc>https://zajm24online.ru/item/mfo_12.html</loc><lastmod>2017-04-12T14:41:54Z</lastmod><changefreq>weekly</changefreq><priority>0.5</priority></url><url><loc>https://zajm24online.ru/item/mfo_11.html</loc><lastmod>2017-04-12T14:41:54Z</lastmod><changefreq>weekly</changefreq><priority>0.5</priority></url><url><loc>https://zajm24online.ru/item/mfo_10.html</loc><lastmod>2017-04-12T14:41:54Z</lastmod><changefreq>weekly</changefreq><priority>0.5</priority></url><url><loc>https://zajm24online.ru/item/mfo_9.html</loc><lastmod>2017-04-12T14:41:54Z</lastmod><changefreq>weekly</changefreq><priority>0.5</priority></url><url><loc>https://zajm24online.ru/item/mfo_8.html</loc><lastmod>2017-04-12T14:41:54Z</lastmod><changefreq>weekly</changefreq><priority>0.5</priority></url><url><loc>https://zajm24online.ru/item/mfo_7.html</loc><lastmod>2017-04-12T14:41:54Z</lastmod><changefreq>weekly</changefreq><priority>0.5</priority></url><url><loc>https://zajm24online.ru/item/mfo_6.html</loc><lastmod>2017-04-12T14:41:54Z</lastmod><changefreq>weekly</changefreq><priority>0.5</priority></url><url><loc>https://zajm24online.ru/item/mfo_5.html</loc><lastmod>2017-04-12T14:41:54Z</lastmod><changefreq>weekly</changefreq><priority>0.5</priority></url><url><loc>https://zajm24online.ru/item/mfo_4.html</loc><lastmod>2017-04-12T14:41:54Z</lastmod><changefreq>weekly</changefreq><priority>0.5</priority></url><url><loc>https://zajm24online.ru/item/mfo_3.html</loc><lastmod>2017-04-12T14:41:54Z</lastmod><changefreq>weekly</changefreq><priority>0.5</priority></url><url><loc>https://zajm24online.ru/item/mfo_2.html</loc><lastmod>2017-04-12T14:41:54Z</lastmod><changefreq>weekly</changefreq><priority>0.5</priority></url><url><loc>https://zajm24online.ru/item/mfo_1.html</loc><lastmod>2017-04-12T14:41:54Z</lastmod><changefreq>weekly</changefreq><priority>0.5</priority></url></urlset></xml>