[3.14] Make printing log lines to the terminal a little cleaner when building WASI (GH-140772) (GH-140804)

Make printing log lines to the terminal a little cleaner when building WASI (GH-140772)
(cherry picked from commit abd19eddee20a7d05266f11f6042a84b04d29664)

Co-authored-by: Brett Cannon <brett@python.org>