Fix comment in split tunnel test

Author: dlon

test/test-manager/src/tests/split_tunnel.rs

@@ -189,7 +189,7 @@ impl ConnChecker {
         self.split = true;
 
         match TEST_CONFIG.os {
-            Os::Linux => { /* linux programs can't be split until they are spawned */ }
+            Os::Linux => { /* linux programs can't be split in the management interface until they are spawned */ }
             Os::Windows => {
                 self.mullvad_client
                     .add_split_tunnel_app(&self.executable_path)