[PATCH proxmox-backup-qemu 3/8] commands: fix clippy error for reimplementing Result::ok()

[Christian Ebner <c.ebner@proxmox.com>]

Call Result::ok() on the index download result, avoiding
reimplementation thereof.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
---
 src/commands.rs | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/src/commands.rs b/src/commands.rs
index 565649f..9b84966 100644
--- a/src/commands.rs
+++ b/src/commands.rs
@@ -195,14 +195,11 @@ pub(crate) async fn register_image(
 
     let index = match manifest {
         Some(manifest) => {
-            match client
+            // not having a previous index is not fatal, so ignore errors
+            client
                 .download_previous_fixed_index(&archive_name, &manifest, Arc::clone(&known_chunks))
                 .await
-            {
-                Ok(index) => Some(index),
-                // not having a previous index is not fatal, so ignore errors
-                Err(_) => None,
-            }
+                .ok()
         }
         None => None,
     };
-- 
2.47.3