test fixups

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

src/tools/file_logger.rs

@@ -8,8 +8,8 @@ use std::io::Write;
 ///
 /// #### Example:
 /// ```
-/// #[macro_use] extern crate proxmox_backup;
 /// # use anyhow::{bail, format_err, Error};
+/// use proxmox_backup::flog;
 /// use proxmox_backup::tools::{FileLogger, FileLogOptions};
 ///
 /// # std::fs::remove_file("test.log");