[DEVMINOR] Fixed warning in Xcode
[DEVMINOR] Fixed warning in Xcode

Change-Id: I534560db7a083ca6865fe1c04743aa190bab3639
Reviewed-on: https://gerrit.parrot.biz/57834
Reviewed-by: Nicolas Brulez <c7b4d7ddc34318e865922d5ddc9ce680dfb1b14c@parrot.com>

Parrot-Developers/Samples,Parrot-Developers/Samples