[baxter_collaboration_msgs] Minor change to cmake
[baxter_collaboration_msgs] Minor change to cmake

ScazLab/human_robot_collaboration,ScazLab/human_robot_collaboration,ScazLab/baxter_collaboration,ScazLab/baxter_collaboration,ScazLab/baxter_collaboration,ScazLab/baxter_collaboration,ScazLab/human_robot_collaboration,ScazLab/human_robot_collaboration