codegen: Minor cleanup after #1691.

Author: emilio

src/codegen/mod.rs

@@ -3612,22 +3612,21 @@ impl CodeGenerator for Function {
         }
 
         // Unfortunately this can't piggyback on the `attributes` list because
-        // the #[link(wasm_import_module)] needs to happen before the `extern "C"` block.
-        // it doesn't get picked up properly otherwise
+        // the #[link(wasm_import_module)] needs to happen before the `extern
+        // "C"` block. It doesn't get picked up properly otherwise
         let wasm_link_attribute =
             ctx.options().wasm_import_module_name.as_ref().map(|name| {
-                quote! {
-                    #[link(wasm_import_module = #name)]
-                }
+                quote! { #[link(wasm_import_module = #name)] }
             });
 
         let ident = ctx.rust_ident(canonical_name);
-        let tokens = quote!(
+        let tokens = quote! {
             #wasm_link_attribute
             extern #abi {
                 #(#attributes)*
                 pub fn #ident ( #( #args ),* ) #ret;
-        });
+            }
+        };
         result.push(tokens);
     }
 }