log: Change log_dateformat to log_show_date and make it bool.

cgminer.c

@@ -1073,14 +1073,14 @@ static struct opt_table opt_config_table[] = {
 		     set_kernel, NULL, NULL,
 		     "Override kernel to use - one value or comma separated"),
 	OPT_WITHOUT_ARG("--load-balance",
-		     set_loadbalance, &pool_strategy,
-		     "Change multipool strategy from failover to quota based balance"),
+			set_loadbalance, &pool_strategy,
+			"Change multipool strategy from failover to quota based balance"),
 	OPT_WITH_ARG("--log|-l",
 		     set_int_0_to_9999, opt_show_intval, &opt_log_interval,
 		     "Interval in seconds between log output"),
-	OPT_WITH_ARG("--log-dateformat",
-		     set_int_0_to_10, opt_show_intval, &opt_log_dateformat,
-		     "Set log dateformat (0 or 1) - 0 is time only, 1 is full date and time."),
+	OPT_WITHOUT_ARG("--log-show-date|-L",
+			opt_set_bool, &opt_log_show_date,
+			"Show date on every log line"),
 	OPT_WITHOUT_ARG("--lowmem",
 			opt_set_bool, &opt_lowmem,
 			"Minimise caching of shares for low memory applications"),

logging.c

@@ -18,7 +18,7 @@
 bool opt_debug = false;
 bool opt_log_output = false;
 int last_date_output_day = 0;
-int opt_log_dateformat = 0;
+int opt_log_show_date = false;
 
 /* per default priorities higher than LOG_NOTICE are logged */
 int opt_log_level = LOG_NOTICE;
@@ -71,7 +71,8 @@ void _applog(int prio, const char *str, bool force)
 		const time_t tmp_time = tv.tv_sec;
 		tm = localtime(&tmp_time);
 
-		if ((opt_log_dateformat == 0) && (last_date_output_day != tm->tm_mday))
+		/* Day changed. */
+		if (opt_log_show_date && (last_date_output_day != tm->tm_mday))
 		{
 			last_date_output_day = tm->tm_mday;
 			char date_output_str[64];
@@ -83,7 +84,7 @@ void _applog(int prio, const char *str, bool force)
 			
 		}
 
-		if (opt_log_dateformat == 1)
+		if (opt_log_show_date)
 		{
 			snprintf(datetime, sizeof(datetime), " [%d-%02d-%02d %02d:%02d:%02d] ",
 				tm->tm_year + 1900,

logging.h

@@ -26,7 +26,7 @@ extern bool want_per_device_stats;
 /* global log_level, messages with lower or equal prio are logged */
 extern int opt_log_level;
 
-extern int opt_log_dateformat;
+extern int opt_log_show_date;
 
 #define LOGBUFSIZ 256