temperature fails to display

[UsernamesAreForChumps]

not an issue when starting with the 'pi' user, but if new user is added, without adding the new user to the group 'video', the temperature will display 'init*C'.

this is solved by adding the user to the group video:

$ usermod -aG video {username}

again, not a bug, so much as a work around. this might be better as a comment on this project, but i'm new to this and dont know how to add just a comment.