fix bug to correctly detect nonexistant downloads directory
fix bug to correctly detect nonexistant downloads directory

yngcan/patentprocessor,nikken1/patentprocessor,nikken1/patentprocessor,funginstitute/patentprocessor,yngcan/patentprocessor,nikken1/patentprocessor,funginstitute/patentprocessor,yngcan/patentprocessor,funginstitute/patentprocessor