Use multispan_sugg

clippy_lints/src/utils/mod.rs

@@ -573,10 +573,10 @@ pub fn span_lint_and_then<'a, 'tcx: 'a, T: LintContext<'tcx>, F>(
 ///
 /// Note: in the JSON format (used by `compiletest_rs`), the help message will appear once per
 /// replacement. In human-readable format though, it only appears once before the whole suggestion.
-pub fn multispan_sugg(db: &mut DiagnosticBuilder, help_msg: String, sugg: &[(Span, &str)]) {
+pub fn multispan_sugg(db: &mut DiagnosticBuilder, help_msg: String, sugg: Vec<(Span, String)>) {
     let sugg = rustc_errors::RenderSpan::Suggestion(rustc_errors::CodeSuggestion {
         msp: MultiSpan::from_spans(sugg.iter().map(|&(span, _)| span).collect()),
-        substitutes: sugg.iter().map(|&(_, subs)| subs.to_owned()).collect(),
+        substitutes: sugg.into_iter().map(|(_, subs)| subs).collect(),
     });
 
     let sub = rustc_errors::SubDiagnostic {