[Fix] Fix parser

src/ragel/smtp_date.rl

   minute          =   digit_2;
   second          =   digit_2;
   time_of_day     =   hour ":" minute (":" second )?;
-  zone            =   FWS ("+" | "-") >Sign_Start %Sign_End digit_4;
+  zone            =   FWS ("+" | "-") digit_4;
   time            =   time_of_day zone;
   date_time       =   (day_of_week ",")? date time;
 }%%

utils/received_parser_bench.c

 static gint total_real_ip = 0;
 static gint total_real_host = 0;
 static gint total_known_proto = 0;
+static gint total_known_ts = 0;
 
 static void
 rspamd_process_file (const gchar *fname)
 		if (rh.by_hostname) {
 			total_valid ++;
 		}
+
+		if (rh.timestamp != 0) {
+			total_known_ts ++;
+		}
 	}
 
 	if (err) {
 			"Total valid (has by part): %d\n"
 			"Total real ip: %d\n"
 			"Total real host: %d\n"
-			"Total known proto: %d\n",
+			"Total known proto: %d\n"
+			"Total known timestamp: %d\n",
 			total_parsed, total_time,
-			total_valid, total_real_ip, total_real_host, total_known_proto);
+			total_valid, total_real_ip,
+			total_real_host, total_known_proto,
+			total_known_ts);
 
 	return 0;
 }