Handing promise rejections from GuildAuditLogs#build to the user (#1474)

* handing guildauditlog's promise rejections to the user

* Returning a new Promise to resolve a Promise.all is unnecessary.
Also for the docs, it returns a Promise<GuildauditLogs>, not GuildAuditLogs directly.

* totally did not removed that line

src/structures/GuildAuditLogs.js

@@ -62,13 +62,11 @@ class GuildAuditLogs {
 
   /**
    * Handles possible promises for entry targets.
-   * @returns {GuildAuditLogs}
+   * @returns {Promise<GuildAuditLogs>}
    */
   static build(...args) {
-    return new Promise(resolve => {
+    const logs = new GuildAuditLogs(...args);
-      const logs = new GuildAuditLogs(...args);
+    return Promise.all(logs.entries.map(e => e.target)).then(() => logs);
-      Promise.all(logs.entries.map(e => e.target)).then(() => resolve(logs));
-    });
   }
 
   /**