rustdoc: Use Vec::into_iter() rather than drain()

This allows removing a `mut` which is nicer. Suggested-by: @jyn514 Signed-off-by: Ian Jackson <[email protected]>
rust-lang · Oct 28, 2020 · 776e204 · 776e204
1 parent 1d6c860
commit 776e204
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/librustdoc/config.rs b/src/librustdoc/config.rs
@@ -377,7 +377,7 @@ impl Options {
             }
         };
 
-        let mut default_settings: Vec<Vec<(String, String)>> = vec![
+        let default_settings: Vec<Vec<(String, String)>> = vec![
             matches
                 .opt_str("default-theme")
                 .iter()
@@ -401,7 +401,7 @@ impl Options {
                 })
                 .collect(),
         ];
-        let default_settings = default_settings.drain(..).flatten().collect();
+        let default_settings = default_settings.into_iter().flatten().collect();
 
         let test_args = matches.opt_strs("test-args");
         let test_args: Vec<String> =