Add more configuration tests

src/base/err_utils.rs

@@ -3,7 +3,7 @@ use std::io::ErrorKind;
 
 /// Encapsulate errors in [`std::io::Error`] with a message
 pub fn encpasulate_error<E: Display, F: ToString>(e: E, msg: F) -> std::io::Error {
-    std::io::Error::new(ErrorKind::Other, format!("{}: {}", msg.to_string(), e))
+    std::io::Error::new(ErrorKind::Other, format!("{}:\n* {}", msg.to_string(), e))
 }
 
 /// Create a new [`std::io::Error`]