blog: fix markup in OpenSSL dec 2022 post

Author: tniessen

locale/en/blog/vulnerability/openssl-fixes-in-regular-releases-dec2022.md

@@ -18,7 +18,7 @@ Our assessment of the [security advisory](https://mta.openssl.org/pipermail/open
 ### X.509 Policy Constraints Double Locking (CVE-2022-3996)
 
 Node.js doesn't call OpenSSL as a separate process (so the possibility to use the `-policy` flag is invalid), nor call
-the functions `X509_VERIFY_PARAM_add0_policy()' and `X509_VERIFY_PARAM_set1_policies()'.
+the functions `X509_VERIFY_PARAM_add0_policy()` and `X509_VERIFY_PARAM_set1_policies()`.
 Therefore, Node.js is not affected by this vulnerability.
 
 ### Contact and future updates