Description of problem:
Program logs and error messages must be written to fd 2 (i.e. stderr), and the actual output to fd 1 (i.e. stdout). Doing anything else makes it very hard to use the program in a pipeline. dnf5 repoquery writes log messages to stdout.

$ dnf5 repoquery 2>/dev/null | grep Repositories
Repositories loaded.

"Repositories loaded." is obviously not a package name.

Version-Release number of selected component (if applicable):
dnf5-5.0.6-1.fc39.x86_64