qiservicetest: add a debug printf
qiservicetest: add a debug printf

Change-Id: I38e8ab7eede3e2976041ce3187a03e3fe3f6cc8c

bsautron/libqi,aldebaran/libqi-java,aldebaran/libqi-java,aldebaran/libqi,aldebaran/libqi,aldebaran/libqi-java,aldebaran/libqi,vbarbaresi/libqi