Summary: Applied various linter fixes. Also make the `.editorconfig` file a bit more specific. Unfortunately, `arc lint --apply-patches` currently modifies some test data that it shouldn't, but this should be fixed after T5105.
Test Plan: Ran `arc unit` to make sure things weren't broken.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: epriestley, Korvin, aurelijus
Differential Revision: https://secure.phabricator.com/D9440
Summary: This is sort of documentation.
Test Plan:
Used the plugin for Notepad++ with default indent of 4 spaces.
Opened file from `src/`, verified that it indents 2 spaces.
Opened file from `externals/`, verified that it indents 4 spaces.
Reviewers: epriestley, btrahan
Reviewed By: epriestley
CC: aran, Korvin
Differential Revision: https://secure.phabricator.com/D3865
