`quota' package has been rebased to 3.17 version. It brings following behavior change:
Utilities `quota', `edquota', and `setquota' accept an user name or user ID as an argument. If the argument looks like a number, it will be considered as user ID, otherwise it will be translated to ID automatically. This can be problem if the user name consists of digits only.
Old version provided option `-x' to force user name to ID translation. New quota version has renamed the option to `--always-resolve'. The old option is not supported anymore.