UTF8 facet: fix do_length overload
UTF8 facet: fix do_length overload

Change-Id: I7d3c981bf19ddb4d064d7685e8d2226799dd4331
Reviewed-on: http://gerrit.aldebaran.lan/36926
Tested-by: gerrit
Reviewed-by: pdaouadi <fc1eb3334d3fdad315bae23aa166bc70bd434067@aldebaran-robotics.com>
Tested-by: pdaouadi <fc1eb3334d3fdad315bae23aa166bc70bd434067@aldebaran-robotics.com>

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