Description:
------------
When using dir() on an ssh2.sftp resource, filenames with 
spaces at the end (e.g., 'foo.txt ') get trimmed. Any further 
file operations on such an entry will fail.

Note: I have the 0.11.0-dev version of the ssh2 extension 
installed. It is impractical for me to upgrade or set up a 
test environment for 0.11.2 at this time.

I did try searching for existing bug reports on this, but did 
not find one.


Reproduce code:
---------------
<?php
/*
 * First, create a file with trailing space in filename
 * in the dest dir. E.g.: touch "foo.txt "
 * Then, run this php script.
 */

$link = ssh2_connect('localhost', 22);
ssh2_auth_password($link,'myusername','mypassword');
$sftp = ssh2_sftp($link);

$dir = @dir('ssh2.sftp://' . $sftp . '/home/myusername/test'); 
     
if ( ! $dir ) {
    die("Could not read dir via ssh2.sftp.\n");
}
                       
while (false !== ($entry = $dir->read()) ) {
  echo "'$entry'\t" . filemtime($entry) . "\t" . filesize($entry) . "\n";
}


Expected result:
----------------
The entry for the 'foo.txt ' file should work just as for any 
other file, printing the filename, size, and timestamp.


Actual result:
--------------
Warning: filemtime(): stat failed for foo.txt in 
/home/dougal/test/test.php on line 14

Warning: filesize(): stat failed for foo.txt in 
/home/dougal/test/test.php on line 14
'foo.txt'