Merge "Fix presubmit for hidden api."

PACKAGES=$(for t in $TEAMS; do echo $(eval echo \${${t}_PACKAGES}); done)

RE=$(echo ${PACKAGES} | sed "s/ /|/g")

git show --name-only --pretty=format: $1 | grep "config/hiddenapi-.*txt" | while read file; do

    ENTRIES=$(grep -E "^L(${RE})/" <(git show $1:$file))

    ENTRIES=$(grep -E "^L(${RE})/" || true <(git show $1:$file))

    if [[ -n "${ENTRIES}" ]]; then

      echo -e "\e[1m\e[31m$file $1 contains the following entries\e[0m"

      echo -e "\e[1m\e[31mfor packages that are handled using UnsupportedAppUsage. Please remove\e[0m"