random: clarify that getrandmax was small only before PHP 7.1
#4664
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Since PHP 7.1 `getrandmax` is an alias of `mt_getrandmax`, which returns 2**31 - 1
takaram
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KentarouTakeda
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* mt_rand() はPHP 8.0以降ValueError をスローする (php/doc-en#4660) * `getrandmax`が小さいのはPHP 7.1までであることを明示 (php/doc-en#4664) * 誤字訂正 * Mt19937 の重複についての訳を改善 * 「重複したシードが存在します」→「シードが重複します」
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Since PHP 7.1
getrandmaxis an alias ofmt_getrandmax, which returns 2**31 - 1