TLS: Improve tls-protocols clarity in redis.conf.

Author: yossigo

redis.conf

@@ -176,9 +176,10 @@ tcp-keepalive 300
 # tls-cluster yes
 
 # Explicitly specify TLS versions to support. Allowed values are case insensitive
-# and include "TLSv1", "TLSv1.1", "TLSv1.2", "TLSv1.3" (OpenSSL >= 1.1.1) 
+# and include "TLSv1", "TLSv1.1", "TLSv1.2", "TLSv1.3" (OpenSSL >= 1.1.1) or
+# any combination. To enable only TLSv1.2 and TLSv1.3, use:
 #
-# tls-protocols TLSv1.2
+# tls-protocols "TLSv1.2 TLSv1.3"
 
 # Configure allowed ciphers.  See the ciphers(1ssl) manpage for more information
 # about the syntax of this string.