tree fc948156f6091a382f0143a48c7c5ef4030851a3
parent cfc311b480d486734bfd68f50cc44c67eebed491
author Luca Milanesio <luca.milanesio@gmail.com> 1589750729 +0100
committer David Pursehouse <dpursehouse@digital.ai> 1589859969 +0000

Run all documentation tests after PolyGerrit build

Gerrit on stable-2.16 does not have any Documentation/... tests
and therefore should be accepted also with exit code 4.
Other branches may have Documentation/... tests and therefore should
be considered valid with exit code 0.

Accept both 4 and 0 as a successful execution codes and fail the build
if Documentation/... tests exited with a different vaue.

Change-Id: I83f4aa3794965f090edef8b41c12e6da39497bdc