* Restore/check should report an error instead of a success at the end if there
were any errors and -persist is specified
* Don't compute the file hash before passing the file to the chunk maker; this is
redundant as the chunk maker will produce the file hash
* Add a LOG_WERROR function to switch between LOG_WARN and LOG_ERROR dynamically
You can now use -suppress LOGID or -s LOGID to not print logs with the given
ids. This is a global option which means it is applicable to all commands.
It can be specified more than once.
