Support for a global digrc file (proposed patch included)
Description
Support for a global configuration file for dig.
Request
As many tools in linux, it would be nice to have a global configuration file for dig in, for example, /etc/digrc while users could still overwrite system options by using the already supported $HOME/.digrc
Links / references
See proposed patch attached (I couldn't figure how to send a merge request due to lack of experience with Gitlab).
Thanks to Paul Zirnik from SUSE.