Handle multiple deps per entry in lg-ros-build
Handle multiple deps per entry in lg-ros-build

Was breaking the build on a change to the GStreamer rosdep entries made in August.

https://github.com/ros/rosdistro/commit/c52f479dbd4346e854adaba389c92705d604bf1b

EndPointCorp/lg_ros_nodes,EndPointCorp/lg_ros_nodes,EndPointCorp/lg_ros_nodes,EndPointCorp/lg_ros_nodes,EndPointCorp/lg_ros_nodes,EndPointCorp/lg_ros_nodes