[fix] Fix issue where options for sanity test command are ignored

[massakam]

Motivation

The bookiesanity subcommand of Bookie Shell enables users to specify the number of entries and the timeout in seconds as command line options.

$ ./bin/bookkeeper shell bookiesanity -e 20 -t 5

However, in practice these options seem to be ignored and the default values (entries: 10, timeout: 1) always used.

Changes

After creating an instance of the SanityTestCommand.SanityFlags class in the BookieShell class, the option values specified on the command line should be passed to it, but this was not actually done.