System/Diagnostics/Activity: "C" missing on a single core cpu, add default for https://github.com/opnsense/core/pull/4835
System/Diagnostics/Activity: "C" missing on a single core cpu, add default for https://github.com/opnsense/core/pull/4835

opnsense/core,opnsense/core,opnsense/core,opnsense/core,opnsense/core,opnsense/core