@@ -68,7 +68,7 @@ |
||
68 | 68 | /** |
69 | 69 | * Get the receivers of the short message as concatenated string. |
70 | 70 | * |
71 | - * @param null $glue |
|
71 | + * @param string $glue |
|
72 | 72 | * @return string |
73 | 73 | */ |
74 | 74 | public function receiversString($glue = null) |