Permission denied - stops hash calculation when using --update

[AxelPetermann]

I'm working on Windows.

I was running rhash on a test-directory (recursively) containing one file which was blocked (Permission denied) by the system. The following happens:

When running the following command the hash file looks as expected (all files included except the one which is blocked by the system - Permission denied): rhash.exe --crc32 --recursive --simple --percents --output="D:\hashfile_output.txt" "D:\rhash_test"

But when changing "output" to "update" the hash-file just contains the files "until" the blocked file: rhash.exe --crc32 --recursive --simple --percents --update="D:\hashfile_output.txt" "D:\rhash_test"