[fpc-pascal] FPC docs about FindFirst

[Michael Van Canneyt]

On Sun, 22 Sep 2019, AlexeyT wrote:

> https://www.freepascal.org/docs-html/rtl/sysutils/findfirst.html
>
> 1) add to the list of attribs the value faAnyFile.

Done.
>
> 2) correct the example: call FindClose only inside block "if 
> FindFirst(..)=0"

This is already so in trunk.

Michael.