support --output again in createReleaseTarball script for hotfix to work

This avoids having to calculate the output filename with revisions and
exact format in the cli tool.

scripts/createReleaseTarball

@@ -17,6 +17,7 @@ version=""
 
 while true; do
     case "$1" in
+    --output) bundle_file="$2"; shift 2;;
     --version) version="$2"; shift 2;;
     --) break;;
     *) echo "Unknown option $1"; exit 1;;
@@ -49,7 +50,7 @@ box_version=$(cd "${SOURCE_DIR}" && git rev-parse "HEAD")
 branch=$(git rev-parse --abbrev-ref HEAD)
 dashboard_version=$(cd "${SOURCE_DIR}/../dashboard" && git fetch && git rev-parse "${branch}")
 bundle_dir=$(mktemp -d -t box 2>/dev/null || mktemp -d box-XXXXXXXXXX --tmpdir=$TMPDIR)
-bundle_file="${TMPDIR}/box-${box_version:0:10}-${dashboard_version:0:10}-${version}.tar.gz"
+[[ -z "$bundle_file" ]] && bundle_file="${TMPDIR}/box-${box_version:0:10}-${dashboard_version:0:10}-${version}.tar.gz"
 
 chmod "o+rx,g+rx" "${bundle_dir}" # otherwise extracted tarball director won't be readable by others/group
 echo "==> Checking out code box version [${box_version}] and dashboard version [${dashboard_version}] into ${bundle_dir}"