RSpec prints "Run options" banner once per worker under parallel runners

[thomaswitt]

When running specs with filters, each worker prints the banner:

Run options: exclude {integration_test: true}

Example command:

bundle exec parallel_rspec -n 6 spec -o '--tag ~integration_test'

With 6+ workers this line floods the logs even though the filters are identical for every process.

Could we have a way to suppress duplicate banners (e.g., add a CLI flag like --quiet)?

See rspec issue rspec/rspec#278

[grosser]

would need to be a new logger like for example summary logger
or an option for that logger
logic would be for example to only print that line if this is the first process (TEST_ENV_NUMVER=="")
possibly an option for the logger_base so it can be used with different loggers