Noisy stdout & stderr even with grpc.grpc_verbosity=NONE #38336
Description
What version of gRPC and what language are you using?
grpc: 1.68.0
php: 8.4.1
What operating system (Linux, Windows,...) and version?
MacOS
What runtime / compiler are you using (e.g. python version or version of gcc)
Apple clang version 15.0.0 (clang-1500.3.9.4)
Target: x86_64-apple-darwin23.6.0
What did you do?
Set grpc.grpc_verbosity=NONE
What did you expect to see?
Not output in stdout & stderr
What did you see instead?
WARNING: All log messages before absl::InitializeLog() is called are written to STDERR
I0000 00:00:1735030583.349300 13730754 call_credentials.c:168] GRPC_PHP: call credentials plugin function - begin
I0000 00:00:1735030583.387361 13730754 call_credentials.c:171] GRPC_PHP: call credentials plugin function - end
I0000 00:00:1735030584.520528 13730619 call_credentials.c:168] GRPC_PHP: call credentials plugin function - begin
I0000 00:00:1735030584.534512 13730619 call_credentials.c:171] GRPC_PHP: call credentials plugin function - end
I0000 00:00:1735030585.087252 13730619 call_credentials.c:168] GRPC_PHP: call credentials plugin function - begin
I0000 00:00:1735030585.087947 13730619 call_credentials.c:171] GRPC_PHP: call credentials plugin function - end
OR/AND
WARNING: All log messages before absl::InitializeLog() is called are written to STDERR
grpc_wait_for_shutdown_with_timeout() timed out.