Launch Bug fix

stretch_gazebo/launch/gazebo.launch

@@ -30,7 +30,7 @@
 
   <!-- push robot_description to factory and spawn robot in gazebo -->
   <node name="urdf_spawner" pkg="gazebo_ros" type="spawn_model"
-        args=" -urdf -model robot -param robot_description -J joint_lift 0.2 -J joint_wrist_yaw 3" respawn="false" output="screen" />
+        args=" -urdf -model robot -param robot_description -J joint_lift 0.2 -J joint_wrist_yaw 3.14" respawn="false" output="screen" />
 
   <node pkg="robot_state_publisher" type="robot_state_publisher"  name="robot_state_publisher">
     <param name="publish_frequency" type="double" value="30.0" />