SFTP: Use hexdec() and bin2hex() for filesize calculation.
Merge pull request #494 from bantu/sftp-filesize-hexdec

SFTP: Use hexdec() and bin2hex() for filesize calculation.

* bantu/sftp-filesize-hexdec:
  SFTP: Use hexdec() and bin2hex() for filesize calculation.
Merge branch 'master' into php5

* master:
  SFTP: Use hexdec() and bin2hex() for filesize calculation.