Merge "Fix zsh compatibility issue in build/envsetup.sh"

            export TARGET_BUILD_VARIANT=$default_value

        elif (echo -n $ANSWER | grep -q -e "^[0-9][0-9]*$") ; then

            if [ "$ANSWER" -le "${#VARIANT_CHOICES[@]}" ] ; then

                export TARGET_BUILD_VARIANT=${VARIANT_CHOICES[$(($ANSWER-1))]}

                export TARGET_BUILD_VARIANT=${VARIANT_CHOICES[@]:$(($ANSWER-1)):1}

            fi

        else

            if check_variant $ANSWER

                echo "Invalid choice"

                continue

            fi

            pathname=${lines[$(($choice-1))]}

            pathname=${lines[@]:$(($choice-1)):1}

        done

    else

        pathname=${lines[0]}

        pathname=${lines[@]:0:1}

    fi

    \cd $T/$pathname

}