Remove debugging code

Signed-off-by: Michal Čihař <michal@cihar.com>

Author: nijel

libraries/export.lib.php

@@ -18,12 +18,10 @@
  */
 function PMA_shutdownDuringExport()
 {
-    $a = error_get_last();
-    if ($a != null && mb_strpos($a['message'], "execution time")) {
-        //write in partially downloaded file for future reference of user
-        print_r($a);
+    $error = error_get_last();
+    if ($error != null && mb_strpos($error['message'], "execution time")) {
         //set session variable to check if there was error while exporting
-        $_SESSION['pma_export_error'] = $a['message'];
+        $_SESSION['pma_export_error'] = $error['message'];
     }
 }