log.c: New log_is_debug() function, hide access to debug variable

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

src/log.c

@@ -30,6 +30,7 @@
 #include "finit.h"
 #include "log.h"
 
+static int debug    = 0;
 static int loglevel = LOG_NOTICE;
 
 void log_init(int qit, int dbg)
@@ -63,6 +64,11 @@ void log_debug(void)
 	logit(LOG_NOTICE, "Debug mode %s", debug ? "enabled" : "disabled");
 }
 
+int log_is_debug(void)
+{
+	return debug;
+}
+
 static void early_logit(int prio, const char *fmt, va_list ap)
 {
 	FILE *fp;