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Make sure only scalar values are allowed in $_ENV #1719
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@ -867,6 +867,7 @@ class PGP extends Base implements \SnappyMail\PGP\PGPInterface
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// Don't localize GnuPG results.
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$env = $_ENV;
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$env['LC_ALL'] = 'C';
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$env = \array_filter($env, fn($var) => \is_scalar($var));
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$proc_pipes = [];
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