garu / Data-Printer / 188

89%

master: 90%

Pull #135

travis-ci

simplify homedir logic, borrowing from File::HomeDir::Tiny

- darwin is just another breed of unix and $ENV{HOME} will always work.

- on MSWin32, $ENV{HOME} also works starting in 5.016; before that, use
$ENV{USERPROFILE}.

- (<~>)[0] should always work when $ENV{HOME} doesn't.

- Mac::SystemDirectory is only needed on MacOS (pre-OSX), which is
rarely seen in the wild, but we add Mac::SystemDirectory to the prereqs
on that platform so we can rely on its existence.

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