make bash8 take a -v flag

this ensures that we actually know we are processing all the files
we believe we are.

Change-Id: I8e99b5f9dc987c946586475f374f7040ca63a478
match devstack-gate format

support millisecond resolution and the | separator for ts vs.
content.

everything else in openstack is running at millisecond resolution,
and some times it's actually useful to see that when debugging
gate failures.

Change-Id: I2227ab0b4965cd1a24b579bdf2ba8c1f9a432f70
Merge "match devstack-gate format"
Merge "make bash8 take a -v flag"