The bug here was to output 'interrupted: true' when running
in --bot-mode. Instead in normal execution we will output
that we were not interrupted.

Bug: angleproject:3162
Bug: chromium:1134619
Change-Id: I3842e90466473ff05b0b90bc4660f88606a3c9f6
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2446851Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>