Move opt_quiet check to my_log_curses, so it works for curses-less builds

cgminer.c

@@ -87,7 +87,7 @@ static bool opt_benchmark;
 static bool have_longpoll;
 static bool want_per_device_stats;
 bool use_syslog;
-static bool opt_quiet;
+bool opt_quiet;
 static bool opt_realquiet;
 bool opt_loginput;
 const int opt_cutofftemp = 95;
@@ -1566,9 +1566,6 @@ void log_curses(int prio, const char *f, va_list ap)
 {
 	bool high_prio;
 
-	if (opt_quiet && prio != LOG_ERR)
-		return;
-
 	high_prio = (prio == LOG_WARNING || prio == LOG_ERR);
 
 	if (curses_active_locked()) {

logging.c

@@ -20,6 +20,9 @@ int opt_log_level = LOG_NOTICE;
 
 static void my_log_curses(__maybe_unused int prio, char *f, va_list ap)
 {
+	if (opt_quiet && prio != LOG_ERR)
+		return;
+
 #ifdef HAVE_CURSES
 	extern bool use_curses;
 	if (use_curses)

miner.h

@@ -614,6 +614,7 @@ extern int opt_n_threads;
 extern int num_processors;
 extern int hw_errors;
 extern bool use_syslog;
+extern bool opt_quiet;
 extern struct thr_info *thr_info;
 extern struct cgpu_info gpus[MAX_GPUDEVICES];
 extern int gpu_threads;