The fourth positional argument of `createCipherBase` is `true` when
called from within the `Cipheriv` constructor and `false`when called
from within the `Decipheriv` constructor. This value is then passed to
the `CipherBase::New()` method, which treats it as follows:
args[0]->IsTrue() ? kCipher : kDecipher
However, the current name of said positional argument is `decipher` and
thus indicates the exact opposite: when the argument is set to true, the
instance is *not* a `Decipheriv` object. Therefore, this commit renames
the argument to `isEncrypt`, which matches the actual semantics.
PR-URL: https://github.com/nodejs/node/pull/57843
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Edy Silva <edigleyssonsilva@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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