This standardizes namespace closing brackets for namespace blocks. Each one is
on its own line, with a comment clearly marking which namespace it closes.
Consecutive lines closing namespace blocks have no whitespace between them, but
there is one blank line before and after a set of namespace block closing lines.
To generate the namespace comments, I used clang-format, with
`FixNamespaceComments: true`. But since clang-format can't exactly duplicate
our astyle formatting, it made lots of other changes, too. To isolate the
namespace comments from the other formatting changes, I first ran clang-format
with `FixNamespaceComments: false`, committed those changes, then ran it again
to generate the namespace comments. Then I stashed the namespace comments,
reset `HEAD` to remove the other changes, applied the stashed namespace
comments, and committed the results (after examining them and making a few minor
adjustments by hand).
Signed-off-by: Michael Richters <gedankenexperimenter@gmail.com>
Apple started calling their operating system macOS, rather than OSX a while ago,
and as such, we should follow suit. This introduces `::hostos::MACOS`, and makes
`::OSX` an alias of it.
All internal users were updated to refer to `::hostos::MACOS`, but the `::OSX`
alias is being kept indefinitely.
Signed-off-by: Gergely Nagy <algernon@keyboard.io>