Add flag to disable carriage return in stdout

[provokateurin]

I'm using a systemd service for ripping CDs in the background.
Unfortunately the carriage returns used to update the progress don't place nice with systemd (or any other logging system that is not a terminal I believe).
It would be great to have a flag to disable it, so that the logs are easier to read in these scenarios.

[cyanreg]

You what?

[provokateurin]

The logs are sent to the systemd-journald and end up looking like this:

Or when you follow them:

I believe this is due to a use of carriage return to update the progress.

[provokateurin]

Ok maybe it's not actually a carriage return but a missing newline:

cyanrip/src/cyanrip_main.c

Line 728 in 60db4ec

cyanrip_log(NULL, 0, "%s", line);

Does this make sense?

[q3cpma]

You could always cyanrip ... | sed 's/.*\r//' to only keep the last "line". But yeah, isatty should be used to guard the use of this kind of gadget.