The pigz binary is used to improve performance when pulling images, but is not available in the default CentOS package repositories. Given that RPM's don't have a "recommends" option, it's better to remove it as a requirement for now, instead of failing to install for some users. Signed-off-by: Sebastiaan van Stijn <github@gone.nl> Upstream-commit: abb1f117d3736fdcbbcc15ecef3e36d1f47c63fa Component: packaging