Problem

LineOriented is a nice utility to mix options with the console, but unfortunately it writes directly to std{out,err} after grabbing them from the Console. Ideally, we would like all output to go through the Console class, to make things like the UI easier to develop.

Solution

• Enhance print_std{out,err} in Console to accept a separator.
• Refactor LineOriented a bit to only write to raw files when we are not writing to stdout.

Result

There should be no visible change in behavior.