Pierre le Riche license statement

[Pierre le Riche]

All of my past & future contributions to LibreOffice may be licensed 
under the MPLv2/LGPLv3+ dual license.

(Note that I am registered on gerrit.libreoffice.org under the 
libreoff...@pleasedontspam.me e-mail address. It is a valid e-mail 
address, despite its appearance.)