Remove Process::escapeArgument argument type hint
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@ -1530,14 +1530,14 @@ class Process implements \IteratorAggregate
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/**
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* Escapes a string to be used as a shell argument.
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*/
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private function escapeArgument(string $argument): string
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private function escapeArgument(?string $argument): string
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{
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if ('' === $argument || null === $argument) {
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return '""';
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}
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if ('\\' !== \DIRECTORY_SEPARATOR) {
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return "'".str_replace("'", "'\\''", $argument)."'";
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}
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if ('' === $argument = (string) $argument) {
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return '""';
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}
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if (false !== strpos($argument, "\0")) {
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$argument = str_replace("\0", '?', $argument);
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}
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