Fix formatting for anyhow! macro call

src/cargo/ops/cargo_doc.rs

@@ -57,7 +57,9 @@ pub fn doc(ws: &Workspace<'_>, options: &DocOptions) -> CargoResult<()> {
 
     if options.open_result {
         let name = &compilation.root_crate_names.get(0).ok_or_else(|| {
-            anyhow::anyhow!("cannot open specified crate's documentation: no documentation generated")
+            anyhow::anyhow!(
+                "cannot open specified crate's documentation: no documentation generated"
+            )
         })?;
         let kind = options.compile_opts.build_config.single_requested_kind()?;