Add log statement for blk*.dat globbing

src/daemon.rs

@@ -227,6 +227,7 @@ impl Daemon {
         let mut path = self.daemon_dir.clone();
         path.push("blocks");
         path.push("blk*.dat");
+        info!("listing block files at {:?}", path);
         let mut paths: Vec<PathBuf> = glob::glob(path.to_str().unwrap())
             .chain_err(|| "failed to list blk*.dat files")?
             .map(|res| res.unwrap())