bug#42871: 28.0.50; Documentation for `seq-contains-p` is outdated

[Eli Zaretskii]

> From: Iwan in 't Groen <iwanintgroen@gmail.com>
> Date: Sat, 15 Aug 2020 16:04:12 +0200
> 
>          (seq-contains '(symbol1 symbol2) 'symbol1)
>          ⇒ symbol1
>          (seq-contains '(symbol1 symbol2) 'symbol3)
>          ⇒ nil
> 
> The title is correct but the information shown is for the obsolete
> `seq-contains` function.

Thanks, fixed.