This can only break currently when the ODFVALIDATOR_JAR (or officeotron)
changes, but then it does break and you get an outdated odfvalidator.sh.

Change-Id: Idcdea3abe6516b71943f32c2bd412f79dc44d790
Reviewed-on: https://gerrit.libreoffice.org/53993Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Michael Stahl <Michael.Stahl@cib.de>