pdns_server --version writes to STDERR instead of STDOUT

[paddg]

• [x] This is not a support question, I have read about opensource and will send support questions to the IRC channel, Github Discussions or the mailing list.

• [x] I have read and understood the 'out in the open' support policy

  • Program: Authoritative
  • Issue type: Bug report

Short description

pdns_server --version writes its output to STDERR. In my opinion this is wrong because there is no error. It is also not consistent with dnsdist and Recursor.

Environment

• Software version: PowerDNS Authoritative Server 4.9.0

Steps to reproduce

pdns_server --version 2>/dev/null

does not show anything, which is wrong.

Expected behaviour

It would be nice if pdns_server --version would write to STDOUT instead of STDERR

Actual behaviour

pdns_server --version writes to STDERR

[omoerbeek]

This should be consistent for all products. Fixing this requires some plumbing in showProductVersion() and friends, which now are hardcoded to use logging, which used the C++ stream clog, which is sent to stderr.

[omoerbeek]

Fixed in #14518

[paddg]

Thank you!