Update openssl_privatekey.py (#55438)

* Update openssl_privatekey.py

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+label: docsite_pr

* Update lib/ansible/modules/crypto/openssl_privatekey.py

Co-Authored-By: snagoor <nagoor.s@gmail.com>

* Update lib/ansible/modules/crypto/openssl_privatekey.py

Co-Authored-By: snagoor <nagoor.s@gmail.com>

lib/ansible/modules/crypto/openssl_privatekey.py

@@ -103,7 +103,9 @@ options:
         version_added: "2.4"
     cipher:
         description:
-            - The cipher to encrypt the private key. (cipher can be found by running `openssl list-cipher-algorithms`)
+            - The cipher to encrypt the private key. (Valid values can be found by
+              running `openssl list -cipher-algorithms` or `openssl list-cipher-algorithms`,
+              depending on your OpenSSL version.)
             - When using the C(cryptography) backend, use C(auto).
         type: str
         version_added: "2.4"