fix printout redirection in script

# accordance with the laws of the Federal Republic of Germany excluding its conflict of law rules and

# the United Nations Convention on Contracts on the International Sales of Goods.

# NOTE: this does not check e.g. for float_ref_branchname actually existing and will silently return ivas-float-update if not

#       Use branch-follows-porting-naming-convention.sh for that

set -euo pipefail

# in this snippet, always print stuff to stderr and ONLY the final echo with of branchname_out should go to stdout

exec 3>&1 # save stdout on file desc 3

exec 1>&2 # send all stdout to stderr

if [ $# -ne 1 ]; then

  echo "Usage: $0 <branchname>"

  exit 1

# now check in ivas-codec repository if a branch with this name exits

exit_code_ls_remote=0

pushd "${SCRIPTS_DIR}"

git fetch origin >>/dev/null

git ls-remote --exit-code --heads origin refs/heads/$float_ref_branchname >>/dev/null || exit_code_ls_remote=$?

git fetch origin

git ls-remote --exit-code --heads origin refs/heads/$float_ref_branchname || exit_code_ls_remote=$?

popd

# If the branch does not exist, default to "ivas-float-update"

  branchname_out="${float_ref_branchname}"

fi

echo "$branchname_out"

printf '%s\n' "$branchname_out" >&3

exit 0