Description:
------------
opendir() attempts to open FTP data stream for non-existent directories when used with ftp:// wrapper.

Test script:
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var_dump(opendir("ftp://example.com/nonexistent"));
var_dump(opendir("ftp://example.com/"));


Expected result:
----------------
Warning: opendir(ftp://example.com/nonexistent): failed to open dir: FTP server reports 250 The system cannot find the file specified. 
 in test.php on line 2
bool(false)
resource(8) of type (stream)

Actual result:
--------------
 PHP Warning:  opendir(): connect() failed: Connection timed out in test.php on line 2
PHP Warning:  opendir(ftp://example.com/nonexistent): failed to open dir: FTP server reports 200 Type set to A.
 in test.php on line 2
bool(false)
resource(9) of type (stream)