try to fix : shipping specimen model not displayed

htdocs/admin/expedition.php

@@ -140,8 +140,8 @@ if ($action == 'specimen')
 		}
 		else
 		{
-			$mesg='<font class="error">'.$obj->error.'</font>';
-			dol_syslog($obj->error, LOG_ERR);
+			$mesg='<font class="error">'.$module->error.'</font>';
+			dol_syslog($module->error, LOG_ERR);
 		}
 	}
 	else

htdocs/expedition/class/expedition.class.php

@@ -1060,7 +1060,7 @@ class Expedition extends CommonObject
 
 		// Initialise parametres
 		$this->id=0;
-		$this->ref = 'SPECIMEN_SHIP';
+		$this->ref = 'SPECIMEN';
 		$this->specimen=1;
 		$this->statut               = 1;
 		$this->livraison_id         = 0;