fixed clippy issues

Author: joel nises

Cargo.lock

@@ -1,10 +1,11 @@
 [package]
 name = "git-suggest-reviewers"
-version = "1.4.2"
+version = "1.4.3"
 authors = ["Joel Nises <[email protected]>"]
 edition = "2018"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+[profile.release]
+lto = true
 
 [dependencies]
 anyhow = "1.0"

Cargo.toml

@@ -122,8 +122,8 @@ fn main() -> Result<()> {
     let modified = (0..num_deltas).into_par_iter().map(|deltaidx| -> Result<ModifiedMap> {
         let mut modified: ModifiedMap = HashMap::new();
         let repo = repo_tls.get_or_try(get_repo)?;
-        let diff = diff_tls.get_or_try(|| get_diff(&repo, merge_base, compare, context))?;
-        match Patch::from_diff(&diff, deltaidx) {
+        let diff = diff_tls.get_or_try(|| get_diff(repo, merge_base, compare, context))?;
+        match Patch::from_diff(diff, deltaidx) {
             Ok(Some(patch)) => {
                 let delta = patch.delta();
                 if delta.old_file().exists() {