update zbar build shell script

guowenxue

2020-08-21 cd75afe5448c6255a7e68e3d12364166c3a5f301

update zbar build shell script

 3rdparty/zbar/build.sh

@@ -65,7 +65,7 @@

    set -e

    if [ -f ${PREFIX_PATH}/bin/zbarcam ] ; then
    if [ -f ${PREFIX_PATH}/lib/libzbar.so ] ; then
        msg_banner "$SRC_NAME already compile and installed"
        return 0;
    fi