Behavior change for guessed UTC in 0.5.15

[craigforster]

The latest release has changed the behavior when UTC is configured on the server. Previously, UTC was reported as Etc/UTC and now it's reported as Etc/Universal. This breaks downstream dependencies that rely on on detecting Etc/UTC (for better or worse), for example https://github.com/gautamsi/ews-javascript-api.

Reproduction script:

guess.js:

const moment = require('moment-timezone');
console.log(moment.tz.guess());

With 0.5.14:

$ TZ=Etc/UTC node guess.js
Etc/UTC

With 0.5.15:

$ TZ=Etc/UTC node guess.js
Etc/Universal

This looks to be due to the change in the data files, the 2017c version contains "Etc/UTC|UTC|0|0|", whereas the 2018d version contains "Etc/Universal|UTC|0|0|",.

[ellenaua]

@craigforster Thanks! I Just released 0.5.16 with a fix.

[craigforster]

Thanks for the quick fix!