Description:
------------
In release 5.0 this was noted:

Changed HTTP file uploads not to throw E_WARNINGs and E_NOTICEs. The error value in the $_FILES global should be used for error handling. (Derick) 

However in version 5.0.3 on Linux the (it worked on windows) generates the following error on optional file upload fields that are not used:

Notice: No file uploaded in Unknown on line 0 


Using php5.0.3/Apache/2.0.46 (Red Hat). 


Reproduce code:
---------------
<?php
	if(isset($_POST['submit'])){		
		var_dump($_FILES);	
		print "<BR><BR>";
	}
?>
<form name="myForm" enctype="multipart/form-data" action="<?php echo $_SERVER['PHP_SELF'] ; ?>" method="post">
	<table>
		<tr><td bgcolor="ffffff"><strong>Attachments:</strong></td></tr>
		<tr><td bgcolor="ffffff"><input type="file" name="file2[]" id="file1" class="button" size="30"></td></tr>
		<tr><td bgcolor="ffffff"><input type="file" name="file2[]" id="file1" class="button" size="30"></td></tr>
		<tr><td bgcolor="ffffff"><input type="file" name="file2[]" id="file1" class="button" size="30"></td></tr>
		<tr><td bgcolor="ffffff"><input type="submit" name="submit"></td></tr>
	</table>
</form>

Expected result:
----------------
a var_dump of the $_FILES data struture

Actual result:
--------------
<br />
<b>Notice</b>:  No file uploaded in <b>Unknown</b> on line <b>0</b><br />
</font><br />
<b>Notice</b>:  No file uploaded in <b>Unknown</b> on line <b>0</b><br />
</font>array(1) {
  ["file2"]=>
  array(5) {
    ["name"]=>
    array(3) {
      [0]=>
      string(9) "email.xls"
      [1]=>
      string(0) ""
      [2]=>
      string(0) ""
    }
    ["type"]=>
    array(3) {
      [0]=>
      string(24) "application/vnd.ms-excel"
      [1]=>
      string(0) ""
      [2]=>
      string(0) ""
    }
    ["tmp_name"]=>
    array(3) {
      [0]=>
      string(14) "/tmp/phpidlG5j"
      [1]=>
      string(0) ""
      [2]=>
      string(0) ""
    }
    ["error"]=>
    array(3) {
      [0]=>
      int(0)
      [1]=>
      int(4)
      [2]=>
      int(4)
    }
    ["size"]=>
    array(3) {
      [0]=>
      int(13824)
      [1]=>
      int(0)
      [2]=>
      int(0)
    }
  }
}