Making Optional Sign-up Fields Actually Optional

[zeedubbs]

When users register there is an optional signup field.  When using the optional field coppermine is requiring the user to fill in the field but I would like them to have the option of keeping the field empty.  I found the line of code in register.php that requires the field not to be empty but instead of altering the code I was wondering if there is just a way instead of setting an option that allows the field to be truly optional.  Im running version 1.4.13.

Thanks,
Zac

[Nibbler]

Update your gallery. All the additional user fields are optional by default. Post a link to your gallery so we can see the registration form.