skip rubocop warning in task
skip rubocop warning in task

For whatever reason, rubocop cannot see that stderr is indeed a used variable.

DavidS/puppetlabs-mysql,puppetlabs/puppetlabs-mysql,fuel-infra/puppetlabs-mysql,simp/puppetlabs-mysql,puppetlabs/puppetlabs-mysql,markasammut/puppetlabs-mysql,markasammut/puppetlabs-mysql,DavidS/puppetlabs-mysql,simp/puppetlabs-mysql,fuel-infra/puppetlabs-mysql