Simplify ui_out argument parsing

Tests print a confusing error

	./run: line 214: shift: shift count out of range

This is because ui_out -until-grep now shifts twice which conflicts
with the weird shift at the end of ui_out.

It also has a loop, making it possible to do something like "ui_out
foo bar baz" to expect three different messages.  We don't use this
feature anywhere, and it seems just super surprising, given that
ui_out now consumes between 1 and 3 arguments each time.  Let's get
rid of the loop, and always run shift right next to where we actually
use the argument. This should make things less brittle.

0 files changed, 0 insertions, 0 deletions