Incorrect comment in Listing 3.1

[berkerpeksag]

The following snippet is in serverless-architectures-aws/chapter-3/Listing 3.1 - 3.4 - Transcode Video Lambda/index.js:

//the input file may have spaces so replace them with '+'
var sourceKey = decodeURIComponent(key.replace(/\+/g, ' '));

However, the code does the opposite of what the comment says. I think the correct version should read as:

var sourceKey = decodeURIComponent(key.replace(/\W/g, '+'));