Fix args in axios

Author: kazuhitoyokoi

lib/swagger/index.js

@@ -15,15 +15,13 @@ async function getSpec(src, data) {
     let spec;
     if (typeof src === "string") {
         if (/^https?:/.test(src)) {
-            let requestOptions = {
-                url: src
-            };
+            let requestOptions = {};
             if (data.lang) {
                 requestOptions.headers = {
                     'Accept-Language': data.lang
                 }
             }
-            let response = await axios.get(requestOptions);
+            let response = await axios.get(src, requestOptions);
             spec = response.data;
         } else if (/\.yaml$/.test(src)) {
             spec = yamljs.load(util.skipBom(await fs.promises.readFile(src)));