chg: show debug message for each fd to be closed
It helps debugging. The number of file descriptors should be small in most
cases, so the console output wouldn't get bloated even with CHG_DEBUG=1.
--- a/contrib/chg/chg.c Tue Nov 03 11:06:15 2020 +0900
+++ b/contrib/chg/chg.c Tue Nov 03 11:12:25 2020 +0900
@@ -289,6 +289,7 @@
continue;
}
if (fd_value > STDERR_FILENO) {
+ debugmsg("closing fd %ld", fd_value);
int res = close(fd_value);
if (res) {
debugmsg("tried to close fd %ld: %d "