clippy: rewrite comparison chains

chunk_stream one can be collapsed, since split == split_to with at set
to buffer.len() anyway.

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

src/config/network/parser.rs

@@ -293,6 +293,7 @@ impl <R: BufRead> NetworkParser<R> {
             }
         }
 
+        #[allow(clippy::comparison_chain)]
         if let Some(netmask) = netmask {
             if address_list.len() > 1 {
                 bail!("unable to apply netmask to multiple addresses (please use cidr notation)");