Fix run sql with large data

htdocs/core/lib/admin.lib.php

@@ -143,7 +143,7 @@ function run_sql($sqlfile,$silent=1,$entity='',$usesavepoint=1,$handler='',$oker
     {
         while (! feof($fp))
         {
-            $buf = fgets($fp, 4096);
+            $buf = fgets($fp, 32768);
 
             // Test if request must be ran only for particular database or version (if yes, we must remove the -- comment)
             if (preg_match('/^--\sV(MYSQL|PGSQL)([^\s]*)/i',$buf,$reg))