Hide these tokens to avoid malicious subprocesses e.g. sending them
over the network. Also, support using these tokens with environment
filtering and clear `HOMEBREW_PATH` from subprocesses to stop them
sniffing it. Finally, use `HOMEBREW_PATH` to detect Homebrew’s user’s
PATH for e.g. `brew doctor` etc.

tests: reduce some noise.

- Tweak the way offline skipping happens
- Skip more tests that break when offline
- Hide more stdout output from tests.

formula_installer: remove feature flags.

Fix `brew edit` with environment filtering.

Validate `container :type`.

[trifle] missing space

audit: ensure default dependencies don't use options.

audit: new formulae should not require patches.

We've been testing the recursive dependency check and allowing unlinked
dependencies in CI for a while with no adverse consequences so enable
them globally now for all users.

For many people `brew edit` makes use of the `EDITOR` variable to pick a
sensible editor. With environment filtering enabled unless this editor
is found in the default system PATH it'll fall back to e.g. `vim`.

Instead, ensure that we export the original, pre-filtering `PATH` as
`HOMEBREW_PATH` and use that internally to locate the editor. In future
this same approach will likely be used for requirements to be able to
find tools, too, and for other variables which we want to expose to
Homebrew itself but not other build tools.

Note that `HOMEBREW_PATH` is the same as `PATH` when build filtering
hasn't been enabled.

Option dependencies are nasty as they cause unnecessary builds from
source.

We may under some circumstances accept these anyway but it's better to
nudge people into the right behaviours on local `audit`s.

README: Add Charlie to former maintainers.

Partly revert “Fix `uninstall :pkgutil` leaving empty `.app` directories.”.

Replace `FileUtils.chmod` with `/bin/chmod` for cask binaries.

Update binary.rb
Update binary.rb
Update binary.rb

Fix `IO#select` blocking.

Remove extraneous }

Port OsxfuseRequirement to Linux

Fix `plist` parser failing when encoded with ASCII.

audit: fix swapped audit messages

Lowercase `caskroom` and add missing Taps.

Acceptable-Formulae: reword 'niche stuff'

xcode: 8.3.2 is latest version