Re: [PATCH] gitweb: fixes to gitweb feature check code

> The gitweb_check_feature routine was being used for two different
> purposes: retrieving the actual feature value (such as the list of
> snapshot formats or the list of additional actions), and to check if a
> feature was enabled.
>
> For the latter use, since all features return an array, it led to either
> clumsy code or subtle bugs, with disabled features appearing enabled
> because (0) evaluates to 1.
>
> We fix these bugs, and simplify the code, by separating feature (list)
> value retrieval (gitweb_get_feature) from boolean feature check (i.e.
> retrieving the first/only item in the feature value list). Usage of
> gitweb_check_feature across gitweb is replaced by the appropriate call
> wherever needed.