Travis now [1] defaults to _JAVA_OPTIONS="-Xmx2048m -Xms512m". We wouldn't
care much, except that every Java command now outputs the following line
to stderr, breaking our jdnssec diffs:
"Picked up _JAVA_OPTIONS: -Xmx2048m -Xms512m"
[1]: https://docs.travis-ci.com/user/build-environment-updates/2017-09-06/
(cherry picked from commit
a20029adeecbf314594ca3a921ca1f2e22669e6c)
export PDNSUTIL=${PDNSUTIL:-${PWD}/../pdns/pdnsutil}
export PDNSCONTROL=${PDNSCONTROL:-${PWD}/../pdns/pdns_control}
+unset _JAVA_OPTIONS
+
spectest=$1
[ -z $spectest ] && spectest=""