Logs: fix compilation warning
Logs: fix compilation warning

Change-Id: I38b2c095109d23ee41448e545e6d7b821356e7af
Reviewed-on: http://gerrit.aldebaran.lan/36927
Reviewed-by: pdaouadi <fc1eb3334d3fdad315bae23aa166bc70bd434067@aldebaran-robotics.com>
Tested-by: pdaouadi <fc1eb3334d3fdad315bae23aa166bc70bd434067@aldebaran-robotics.com>

aldebaran/libqi,vbarbaresi/libqi,bsautron/libqi,aldebaran/libqi,aldebaran/libqi