[issue2054] add ftp-tls support to ftplib - RFC 4217

[Giampaolo Rodola']

Giampaolo Rodola' <billiejoex at users.sourceforge.net> added the comment:

I realized that the attached patch had some indentation issues.
The one in attachment fixes them.

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue2054>
_______________________________________