augment UCommand with `#[derive(Debug)]` to allow improved test diagnostics
@@ -447,6 +447,7 @@ impl TestScenario {
/// 2. it tracks arguments provided so that in test cases which may provide variations of an arg in loops
/// the test failure can display the exact call which preceded an assertion failure.
/// 3. it provides convenience construction arguments to set the Command working directory and/or clear its environment.
+#[derive(Debug)]
pub struct UCommand {
pub raw: Command,
comm_string: String,
