fixed unit test script for opValidatorDateTest (refs #633)
fixed unit test script for opValidatorDateTest (refs #633)

ShinichiU/AuthFramework,nishizoe/OpenPNE3,balibali/KakiageSNS,nise-nabe/ppcon-sns,upsilon/travis-test,ShinichiU/AuthFramework,openpne/OpenPNE3,C-nakajima/OpenPNE3,ShinichiU/OpenPNE3,nise-nabe/ppcon-sns,openpne/OpenPNE3,tejima/OP3PKG,tejima/testravis,isaosano/OpenPNE3,C-nakajima/OpenPNE3,ShinichiU/OpenPNE3_with_webInstaller,kashiwasan/symfony-advanced,ShinichiU/OpenPNE3,tejimaya/OpenPNE3,nishizoe/OpenPNE3,ShinichiU/AuthFramework,ShinichiU/OpenPNE3,balibali/KakiageSNS,ShinichiU/OpenPNE3,isaosano/OpenPNE3,isaosano/OpenPNE3,tejima/OP3PKG,openpne/OpenPNE3,openpne/OpenPNE3,C-nakajima/OpenPNE3,tejimaya/OpenPNE3,upsilon/OpenPNE3,ShinichiU/OpenPNE3_with_webInstaller,upsilon/travis-test,isaosano/OpenPNE3,tejima/testravis,upsilon/OpenPNE3,kashiwasan/symfony-advanced,C-nakajima/OpenPNE3,tejima/testravis