Improve select-parsing test readability
It was recommended here to use trim() to make these test cases more
readable:
https://chromium-review.googlesource.com/c/chromium/src/+/5936092/comment/051341cb_4c94e057/
Change-Id: I532b08bef1a7f04e4be3325d2ed3769d7ed564b9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5939523
Reviewed-by: Mason Freed masonf@chromium.org
Commit-Queue: Joey Arhar jarhar@chromium.org
Cr-Commit-Position: refs/heads/main@{#1371467}