[autotest] Remove the trailing '/' from the results URL rewrite rule.

Recently, the rewrite rule began adding a trailing '/'.  It seemed
like the thing to do at the time.  It was wrong.

BUG=chromium:411421
TEST=manually paste a rewritten URL into a browser, see it work

Change-Id: I2ff29150434d98058a3d0fd63af4bf82fdaeef30
Reviewed-on: https://chromium-review.googlesource.com/216770
Commit-Queue: Richard Barnette <jrbarnette@chromium.org>
Tested-by: Richard Barnette <jrbarnette@chromium.org>
Reviewed-by: Alex Miller <milleral@chromium.org>
1 file changed