Bug fixed in docker/build-container.sh

# Copyright ETSI 2018

# See: https://forge.etsi.org/etsi-forge-copyright-statement.txt

set -e

#set -e

set -vx

DOCKER_FILE=./Dockerfile

if [ -f ${DOCKER_FILE} ]

then

    IMAGES=$(docker images -q)

    if [ "${IMAGES}" != "" ]

    then

      docker rmi -f $(docker images -q)

    fi

    cp ~/.ssh/id_rsa* .

    docker build --tag stf525_its --force-rm .

    docker build --tag stf549_ng112 --force-rm .

    rm ./id_rsa*

    if [ "$?" != "0" ]

    then