Fix format call

src/export/mod.rs

@@ -53,7 +53,7 @@ impl ExportManager {
     /// Add an additional exporter to the ExportManager
     pub fn add_exporter(&mut self, export_type: ExportType, filename: &str) -> Result<()> {
         let _ = File::create(filename)
-            .with_context(|| format!("Could not create export file '{filename}'"))?;
+            .with_context(|| format!("Could not create export file '{}'", filename))?;
 
         let exporter: Box<dyn Exporter> = match export_type {
             ExportType::Asciidoc => Box::new(AsciidocExporter::default()),