Use fixed length for formatting standard cipher names

Example with patch:
```
$ openssl ciphers -stdname 'TLS_AES_256_GCM_SHA384:ECDHE-ECDSA-CHACHA20-POLY1305'
TLS_AES_256_GCM_SHA384                        - TLS_AES_256_GCM_SHA384         TLSv1.3 Kx=any      Au=any   Enc=AESGCM(256) Mac=AEAD
TLS_CHACHA20_POLY1305_SHA256                  - TLS_CHACHA20_POLY1305_SHA256   TLSv1.3 Kx=any      Au=any   Enc=CHACHA20/POLY1305(256) Mac=AEAD
TLS_AES_128_GCM_SHA256                        - TLS_AES_128_GCM_SHA256         TLSv1.3 Kx=any      Au=any   Enc=AESGCM(128) Mac=AEAD
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 - ECDHE-ECDSA-CHACHA20-POLY1305  TLSv1.2 Kx=ECDH     Au=ECDSA Enc=CHACHA20/POLY1305(256) Mac=AEAD
```

Example without patch:
```
$ openssl ciphers -stdname 'TLS_AES_256_GCM_SHA384:ECDHE-ECDSA-CHACHA20-POLY1305'
TLS_AES_256_GCM_SHA384 - TLS_AES_256_GCM_SHA384  TLSv1.3 Kx=any      Au=any  Enc=AESGCM(256) Mac=AEAD
TLS_CHACHA20_POLY1305_SHA256 - TLS_CHACHA20_POLY1305_SHA256 TLSv1.3 Kx=any      Au=any  Enc=CHACHA20/POLY1305(256) Mac=AEAD
TLS_AES_128_GCM_SHA256 - TLS_AES_128_GCM_SHA256  TLSv1.3 Kx=any      Au=any  Enc=AESGCM(128) Mac=AEAD
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 - ECDHE-ECDSA-CHACHA20-POLY1305 TLSv1.2 Kx=ECDH     Au=ECDSA Enc=CHACHA20/POLY1305(256) Mac=AEAD
```

CLA: Trivial

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8999)

diff --git a/apps/ciphers.c b/apps/ciphers.c
index cc71e50049f305569b1c79f85e9d354b33b10f9e..e51fac11ee59834265220a35477a37abd63cba02 100644 (file)
--- a/apps/ciphers.c
+++ b/apps/ciphers.c
@@ -247,7 +247,7 @@ int ciphers_main(int argc, char **argv)
                 const char *nm = SSL_CIPHER_standard_name(c);
                 if (nm == NULL)
                     nm = "UNKNOWN";
-                BIO_printf(bio_out, "%s - ", nm);
+                BIO_printf(bio_out, "%-45s - ", nm);
             }
             BIO_puts(bio_out, SSL_CIPHER_description(c, buf, sizeof(buf)));
         }