Add a test for output gather with Proc.
Add a test for output gather with Proc.

Similar coverage already exists coming at it from one level higher (the whole set of "shell" templating abstractions), but it should exist here too.

Signed-off-by: Eric Myhre <2346ad27d7568ba9896f1b7da6b5991251debdf2@exultant.us>

polydawn/gosh,polydawn/gosh