```
editors/micro: Add (experimental) AUTOCOMPLETE option
Pull upstream PR #977 [1] into a patch to provide autocomplete
functionality to the micro editor to facilitate testing, bug reports and
feature requests.
Put it behind a non-default AUTOCOMPLETE option as it is experimental for
now, though it appears well-tested.
It currently provides Go language autocompletion and a prototype generic
autocompletion mechanism for tokens currently in the document
While I'm here, pet portlint (DISTVERSIONPREFIX appears out-of-order)
[1] https://github.com/zyedidia/micro/pull/977
Submitted by: skered (via IRC) [1]
Reviewed_by: swills (maintainer)
Approved by: swills (maintainer)
Differential_Revision: DXXXX
```