tests/test-wireproto.py.out

ui: add explicit path to write prompt text bypassing buffers

The prompt= flag was added at e35d7f131483, when colorui had its own write()
function. Since we've merged colorui to ui, we can simply call the unbuffered
write() function.

Hello, Foobar
['Hello, Fo, =;:<o', 'Hello, Bar']