It accepts comma separated list of names that are
either string module attributes (ascii_letters,digits, etc)
or are used literally
To enter comma use two commas ',,' somewhere - preferably at the end
Qoutes and double qoutes are not supported
Added new parameter 'encrypt' with same semantics from that of
vars_prompt. When encryption is requested a random salt will be
generated and stored along the password in the form:
'<password> salt=<salt>'.
Also store passwords with an ending '\n' for easier looking at files
with console tools. File content was being already rstripped so this
is harmless.
Timur Batyrshin
James Tanner
Alan Fairless
Marcin Kałuża
Maykel Moya
Michael DeHaan
Javier Candeira