Improve "file not found" error message

src/plugins/serve-files.js

@@ -18,7 +18,7 @@ export default async function serveFilePlugin (fastify, options) {
     } catch (err) {
       const errors = err.errors || [err]
       const fileNotFound = errors.reduce((memo, error) => memo && error instanceof NotFoundError, true)
-      if (fileNotFound) throw createError(404, 'File does not exist.')
+      if (fileNotFound) throw createError(404, `File "${req.urlData('path')}" does not exist.`)
       throw err
     }
   })