make ctl.read_property return string other than list when strings split by comma
make ctl.read_property return string other than list when strings
split by comma

mingjian2049/zstack-utility,mingjian2049/zstack-utility,mrwangxc/zstack-utility,live4thee/zstack-utility,mingjian2049/zstack-utility,live4thee/zstack-utility,zstackorg/zstack-utility,zstackio/zstack-utility,mrwangxc/zstack-utility,zstackio/zstack-utility,zstackorg/zstack-utility,live4thee/zstack-utility,zstackio/zstack-utility,zstackorg/zstack-utility,mrwangxc/zstack-utility