Clippy warning

src/cgroups/v2/systemd_manager.rs

@@ -97,7 +97,7 @@ impl SystemDCGroupManager {
         if !cgroups_path.name.ends_with(".slice") {
             return format!("{}-{}.scope", cgroups_path.scope, cgroups_path.name);
         }
-        cgroups_path.name.clone()
+        cgroups_path.name
     }
 
     // systemd represents slice hierarchy using `-`, so we need to follow suit when