prometheus-wireguard-exporter: add meta.mainProgram

Sam feb2406e ae57bfa1

+1
+1
pkgs/servers/monitoring/prometheus/wireguard-exporter.nix
··· 27 homepage = "https://github.com/MindFlavor/prometheus_wireguard_exporter"; 28 license = licenses.mit; 29 maintainers = with maintainers; [ ma27 globin ]; 30 }; 31 }
··· 27 homepage = "https://github.com/MindFlavor/prometheus_wireguard_exporter"; 28 license = licenses.mit; 29 maintainers = with maintainers; [ ma27 globin ]; 30 + mainProgram = "prometheus_wireguard_exporter"; 31 }; 32 }