Instead of combined flags for -c, -s, -t, split into different sets

using an enum and simplify the parsing code.

log.c

@@ -144,6 +144,7 @@ fatalx(const char *msg, ...)
 	char	*fmt;
 	va_list	 ap;
 
+	abort();
 	va_start(ap, msg);
 	if (asprintf(&fmt, "fatal: %s", msg) == -1)
 		exit(1);