When running tests under valgrind, the valgrind summary is printed in
stderr, and the TAP output is printed in stdout. The valgrind summary is
useful to include in the GitLab test report, so append it to the
textual failure information for failed tests.
I can’t find a better XML element in the [JUnit
schema](https://github.com/windyroad/JUnit-Schema/blob/master/JUnit.xsd)
for representing it.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Helps: #487
The current Debian stable CI image ships with Python 3.5, so the Meson
log to JUnit report script is failing because it's using an API addition
present in Python 3.6 or later.
Since it's just a cosmetic option for the time stamp, we can get rid of
it.
GitLab can show the results of a CI pipeline if the pipeline generates a
report using the JUnit XML format.
Since Meson provides a machine parseable output for `meson test`, we can
take that and turn it into XML soup.
