[Lazarus] ProjectGroups: fixed LPG XML structure

[Mattias Gaertner]

On Fri, 15 Nov 2019 21:29:10 +0100
Ondrej Pokorny via lazarus <lazarus at lists.lazarus-ide.org> wrote:

> Hello,
> 
> I just fixed the XML structure of LPG project group files.

What was the bug?

> Old files 
> will be loaded correctly but the new LPG file cannot be opened in a 
> legacy Lazarus installation.
> 
> AFAIK project groups are usable only in trunk so this does not matter 
> (?) Otherwise we would need some legacy option checkbox like it is in 
> the LPI project files.

Don't forget to add it to
https://wiki.lazarus.freepascal.org/Lazarus_2.2.0_release_notes

Mattias