Fetching Audit Logs leads to Uncaught Promise Error if rejected

[ghost]

Please describe the problem you are having in as much detail as possible:
Using <Guild>.fetchAuditLogs leads to an uncaught promise error, if the request is rejected by the Request Handler (like due to missing permissions).

Using following piece:

message.guild.fetchAuditLogs({ user: '200317799350927360' }).catch((err) => console.log('hydar', err))

Logs:

1|CharuruD | 2017/05/07, 00:57:05.733@ Uncaught Promise Error:
1|CharuruD | { DiscordAPIError: Missing Permissions
1|CharuruD |     at item.request.gen.end (/var/opt/Discord_Bot/node_modules/discord.js/src/client/rest/RequestHandlers/Sequential.js:68:65)
1|CharuruD |     at then (/var/opt/Discord_Bot/node_modules/snekfetch/src/index.js:181:21)
1|CharuruD |     at process._tickCallback (internal/process/next_tick.js:109:7)
1|CharuruD |   name: 'DiscordAPIError',
1|CharuruD |   message: 'Missing Permissions',
1|CharuruD |   code: 50013 }

Further details:

• discord.js version: v11.1 master 07623d4
• node.js version: v7.9.0
• Operating system: Debian jessie
• Priority this issue should have – please be realistic and elaborate if possible: Normal

[dragonfire535]

You probably do not have permission to View Audit Logs.

[appellation]

The issue, as reported, is that the lib is not correctly passing down the promise rejection.

[dragonfire535]

Oh. Welp.

[iCrawl]

Fixed in f95f18b on master and bb0ee59 on v11.2 respectively.