better string for translation

downloads.php

@@ -168,7 +168,7 @@ print "</div>\n";
 #5)Flatpak
 print "<div id='flatpak'>\n";
 print "<h2>Flatpak:</h2>\n";
-print _("Instructions to build flatpak package are available")." <a href='https://dev.gajim.org/gajim/gajim/tree/master/flatpak'>" . _("here") . "</a>\n";
+printf(_("Instructions to build flatpak package are available %shere%s"), "<a href='https://dev.gajim.org/gajim/gajim/tree/master/flatpak'>", "</a>\n");
 print "</div>\n";
 
 #6)FreeBSD