>How do you propose that it differentiate between UIDs and user names?
Maybe follow GNU coreutils, prefix ids with + https://www.gnu.org/software/coreutils/manual/html_node/Disa...
Maybe follow GNU coreutils, prefix ids with + https://www.gnu.org/software/coreutils/manual/html_node/Disa...
It's something that has to be picked, and the parent poster will undoubtedly count as 'arrogance' for choosing a workaround.