Configuration files should clearly indicate their location in order to help system administrators manage various programs effectively.
It can be challenging for system administrators to remember the location of configuration files for different programs, especially if they rarely work with those programs or if they have different configurations on different systems.
Programs should provide a straightforward way to report the location of their configuration files, either through the standard help output or by explicitly mentioning the method to find out in the help output. The reported locations should be fully expanded and take into account environment variables, especially those following the XDG standard.