Add description to command line flags (#287)

Add description to log-request command line flags

server/server.go

@@ -171,7 +171,9 @@ func (cfg *Config) RegisterFlags(f *flag.FlagSet) {
 	f.BoolVar(&cfg.LogSourceIPs, "server.log-source-ips-enabled", false, "Optionally log the source IPs.")
 	f.StringVar(&cfg.LogSourceIPsHeader, "server.log-source-ips-header", "", "Header field storing the source IPs. Only used if server.log-source-ips-enabled is true. If not set the default Forwarded, X-Real-IP and X-Forwarded-For headers are used")
 	f.StringVar(&cfg.LogSourceIPsRegex, "server.log-source-ips-regex", "", "Regex for matching the source IPs. Only used if server.log-source-ips-enabled is true. If not set the default Forwarded, X-Real-IP and X-Forwarded-For headers are used")
-	f.BoolVar(&cfg.LogRequestAtInfoLevel, "server.log-request-at-info-level-enabled", false, "Optionally log requests at info level instead of debug level.")
+	f.BoolVar(&cfg.LogRequestHeaders, "server.log-request-headers", false, "Optionally log request headers.")
+	f.StringVar(&cfg.LogRequestExcludeHeadersList, "server.log-request-headers-exclude-list", "", "Comma separated list of headers to exclude from loggin. Only used if server.log-request-headers is true.")
+	f.BoolVar(&cfg.LogRequestAtInfoLevel, "server.log-request-at-info-level-enabled", false, "Optionally log requests at info level instead of debug level. Applies to request headers as well if server.log-request-headers is enabled.")
 }
 
 // Server wraps a HTTP and gRPC server, and some common initialization.