Add file renaming to transmission-remote (daemon)

[kwartel]

It's currently missing in the options of transmission-remote. I can imagine it having a syntax like this:

-rn <files> <filename>

Where <files> works like in -g/-G.

[taem]

Hi,

To implement this feature, the tr_getopt() needs rewrite to return one or more option arguments. Currently it returns only the first argument.

[taem]

I have two options:

1. Use some printable (not whitespace) separator between files and filename. AFAIK an Unix filenames can contain any character except '/' and '\0', therefore separator should be escaped somehow. Or separator can be two characters.
2. tr_option.has_arg should indicate how many arguments an option expect. tr_getopt() should return optarg as array of strings.

[rsully]

I would love to see this implemented. I think taem's second option is probably the best bet.