inline format arguments

In a few cases, removed the unneeded `&` - this causes a minor slowdown because compiler cannot eliminate those (yet).

src/error.rs

@@ -60,18 +60,16 @@ pub fn default_error_handler(error: &Error, output: &mut dyn Write) {
         Error::SerdeYamlError(_) => {
             writeln!(
                 output,
-                "{}: Error while parsing metadata.yaml file: {}",
+                "{}: Error while parsing metadata.yaml file: {error}",
                 Red.paint("[bat error]"),
-                error
             )
             .ok();
         }
         _ => {
             writeln!(
                 &mut std::io::stderr().lock(),
-                "{}: {}",
+                "{}: {error}",
                 Red.paint("[bat error]"),
-                error
             )
             .ok();
         }