fixed untranslated string

src/vcard.php

@@ -92,9 +92,9 @@ if ($vcard_nice['version'] == '2.1') {
        $vcard_nice['email;internet'] = $vcard_nice['email;pref;internet'];
     }
 } else {
-    echo '<tr><td align=center>vCard Version ' . $vcard_nice['version'] .
-        ' is not supported.  Some information might not be converted ' .
-    "correctly.</td></tr>\n";
+    echo '<tr><td align="center">' .
+	sprintf(_("vCard Version %s is not supported. Some information might not be converted correctly."),$vcard_nice['version']) .
+	"</td></tr>\n";
 }
 
 foreach ($vcard_nice as $k => $v) {