show the full output on exit

[codekitchen]

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The original prototype of pipeline captured CTRL-C and showed the full command output on exiting. I think this is a nice touch, it makes it feel a bit more integrated with the parent shell.

I've punted for now because I'm not sure I like any of the options for making this happen.

[codekitchen]

One option that would avoid having to cache the output anywhere -- add another key combination for exiting pipeline, maybe CTRL-D or something, and have that re-run the command one last time and display the full output while exiting. I wouldn't want to make this the default behavior on CTRL-C, re-running the command in that case feels too surprising I think.