Tweaks to presubmit script. - run the same checks on 'git cl upload' as 'git cl pre' - show the problematic line on non-ascii presubmit check Bug: angleproject:4601 Change-Id: I321e22fd49f7a83aa062ebae01d13476e57044e3 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2174075 Commit-Queue: Tim Van Patten <timvp@google.com> Reviewed-by: Tim Van Patten <timvp@google.com>