AnyFunction: fix error printing
AnyFunction: fix error printing

Change-Id: I59291a22dbc2a8f02c52f3bb57d5edc318fad171
Reviewed-on: http://gerrit.aldebaran.lan/49242
Tested-by: gerrit
Reviewed-by: pdaouadi <fc1eb3334d3fdad315bae23aa166bc70bd434067@aldebaran-robotics.com>
Tested-by: pdaouadi <fc1eb3334d3fdad315bae23aa166bc70bd434067@aldebaran-robotics.com>

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