diff --git a/src/bin/rbls.rs b/src/bin/rbls.rs
index 76655ba..311ba09 100644
--- a/src/bin/rbls.rs
+++ b/src/bin/rbls.rs
@@ -43,7 +43,7 @@ fn main() {
         dirs.into_iter()
             .map(|dir| {
                 let files_filtered = transform_file_infos(dir.file_infos, &cli);
-                return dir.name + ":\n" + &format_output(files_filtered, &cli);
+                format!("{}:\n{}", dir.name, &format_output(files_filtered, &cli))
             })
             .collect::<Vec<String>>()
             .join("\n\n")
@@ -83,8 +83,7 @@ fn transform_file_infos(file_infos: Vec<FileInfo>, options: &Cli) -> Vec<String>
     // sort alphabetically
     filtered_file_infos.sort_by(|fi1, fi2| fi1.name.to_lowercase().cmp(&fi2.name.to_lowercase()));
     return filtered_file_infos.into_iter()
-                .map(|file_info| {
-                    
+                .map(|file_info| {  
                     return format_file_info(file_info, options);
                 })
                 .collect();
@@ -120,6 +119,7 @@ fn permissions_str(metadata: &Metadata) -> String {
     let ftype = metadata.file_type();
     let mut result = String::with_capacity(10);
     result.push(
+        // can't match filetype for some reason
         if ftype.is_dir() { 'd' }
         else if ftype.is_symlink() { 'l' }
         else if ftype.is_block_device() { 'b' }