check-format.pl: Add an entry about it to NEWS.md and to CHANGES.md

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12270)

CHANGES.md

@@ -240,6 +240,13 @@ OpenSSL 3.0
 
    *David von Oheimb*
 
+ * Added `util/check-format.pl`, a tool for checking adherence to the
+   OpenSSL coding style <https://www.openssl.org/policies/codingstyle.html>.
+   The checks performed are incomplete and yield some false positives.
+   Still the tool should be useful for detecting most typical glitches.
+
+   *David von Oheimb*
+
  * BIO_do_connect and BIO_do_handshake have been extended:
    If domain name resolution yields multiple IP addresses all of them are tried
    after connect() failures.

NEWS.md

@@ -41,6 +41,7 @@ OpenSSL 3.0
     All widely used CMP features are supported for both clients and servers.
   * Added a proper HTTP(S) client to libcrypto supporting GET and POST,
     redirection, plain and ASN.1-encoded contents, proxies, and timeouts.
+  * Added util/check-format.pl for checking adherence to the coding guidelines.
   * Added OSSL_SERIALIZER, a generic serializer API.
   * Added OSSL_PARAM_BLD, an easier to use API to OSSL_PARAM.
   * Added error raising macros, ERR_raise() and ERR_raise_data().