Load or reload timezone data on init/SIGHUP

This should fix any lingering issues with logging with the wrong
timezone at boot.  As long as syslogd gets HUP'ed after setting
the new timezone.

Improvements to this welcome, of course.

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

src/syslogd.c

@@ -2280,6 +2280,11 @@ static void init(void)
 		}
 	}
 
+	/*
+	 * Load / reload timezone data (in case it changed)
+	 */
+	tzset();
+
 	/*
 	 * Read configuration file(s)
 	 */