fix: use underscore as separator and renaming variable, #5930

Author: fdefelici

stackslib/src/net/mod.rs

@@ -2877,10 +2877,10 @@ pub mod test {
         pub fn test_path(config: &TestPeerConfig) -> String {
             let random = thread_rng().gen::<u64>();
             let random_bytes = to_hex(&random.to_be_bytes());
-            let multi_os_friendly_name = config.test_name.replace("::", ".");
+            let cleaned_config_test_name = config.test_name.replace("::", "_");
             format!(
                 "/tmp/stacks-node-tests/units-test-peer/{}-{}",
-                &multi_os_friendly_name, random_bytes
+                &cleaned_config_test_name, random_bytes
             )
         }