fix switch_file_printf

src/switch_apr.c

@@ -462,9 +462,18 @@ SWITCH_DECLARE(int) switch_file_printf(switch_file_t *thefile, const char *forma
 {
 	va_list ap;
 	int ret;
+	char *data;
+
 	va_start(ap, format);
-	ret = apr_file_printf(thefile, format, ap);
+
+	if ((ret = switch_vasprintf(&data, format, ap)) != -1) {
+		switch_size_t bytes = strlen(data);
+		switch_file_write(thefile, data, &bytes);
+		free(data);
+	}
+
 	va_end(ap);
+
 	return ret;
 }