- issue 2916: use wide char to test for existence, only close file descriptors that we opened
- issue 2916: use wide char to test for existence, only close file descriptors that we opened

copasi/COPASI,copasi/COPASI,copasi/COPASI,copasi/COPASI,copasi/COPASI,copasi/COPASI,copasi/COPASI,copasi/COPASI,copasi/COPASI