I was trying to configure LightDM. It appears that
lightdm.conf is sensitive to trailing spaces. I found that I get different behavior with
where the second has a trailing space. Without the space, the greeter hides the list of users as I expected. With the space, the greeter displays the list of users as if the
greeter-hide-users parameter is not set to true.
I am thinking of reporting this as a bug, but I want to make sure this type of sensitivity to trailing spaces is not typical in configuration files.