clippy: use chars / byte string literals

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>

src/backup/chunk_store.rs

@@ -44,7 +44,7 @@ fn digest_to_prefix(digest: &[u8]) -> PathBuf {
     buf.push(HEX_CHARS[(digest[0] as usize) &0xf]);
     buf.push(HEX_CHARS[(digest[1] as usize) >> 4]);
     buf.push(HEX_CHARS[(digest[1] as usize) & 0xf]);
-    buf.push('/' as u8);
+    buf.push(b'/');
 
     let path = unsafe { String::from_utf8_unchecked(buf)};
 
@@ -226,7 +226,7 @@ impl ChunkStore {
                                 continue;
                             }
 
-                            let bad = bytes.ends_with(".bad".as_bytes());
+                            let bad = bytes.ends_with(b".bad");
                             return Some((Ok(entry), percentage, bad));
                         }
                         Some(Err(err)) => {

src/backup/datastore.rs

@@ -390,7 +390,7 @@ impl DataStore {
         fn is_hidden(entry: &walkdir::DirEntry) -> bool {
             entry.file_name()
                 .to_str()
-                .map(|s| s.starts_with("."))
+                .map(|s| s.starts_with('.'))
                 .unwrap_or(false)
         }
         let handle_entry_err = |err: walkdir::Error| {