Need to set peer ID to start with "-WD-"

[feross]

Continuation of this PR: #462

Need to set the Peer ID using logic that's just like that in webtorrent here: https://github.com/feross/webtorrent/blob/46b3655927eefb4a18fbbfd547013863ccdaed4b/index.js#L23-L65

[rjmille2]

I'm very new to node, but I assuming you want the client.peerId to be a string and the client.peerIdBuffer to be a Buffer, right? I think I've basically fixed this, but just want to make sure I'm understanding correctly.

[rjmille2]

The format that I have created is -WD0018-bc9d8c89a36d for example. I'm not sure why I'm getting 0018 when the semver is 0.8.1. It seems it should be -WD0008-bc9d8c89a36d, but I'm just copying the code from webtorrent repo. It has something to do with this regex being incorrect.

var VERSION_STR = VERSION.match(/([0-9]+)/g).slice(0, 2).map(zeroFill(2)).join('')

[mathiasvr]

@rjmille2 I opened a PR for fixing the version string webtorrent/webtorrent#851. I only think you need to pass the peerId.

[rjmille2]

@mathiasvr, thanks for letting me know. I didn't realize that you could do lambda operations like that in node. I looked at your PR and learned something new today!

[feross]

@rjmille2 I assume that you got busy -- I'll send a PR to implement this today.

[feross]

PR: #742