Tools: update ROS 2 launch file for eProsima integration service

Signed-off-by: Rhys Mainwaring <rhys.mainwaring@me.com>

Tools/ros2/ardupilot_sitl/src/ardupilot_sitl/launch.py

@@ -678,18 +678,23 @@ def generate_action(context: LaunchContext, *args, **kwargs) -> ExecuteProcess:
         # - `config_file` is a positional argument
         args = [
             f"{command} ",
-            f"{config_file}",
+            f"{config_file} ",
         ]
 
         # Optional arguments.
         # - `is_prefix_path` is a colon delimited list of paths
         is_prefix_path = LaunchConfiguration("is_prefix_path").perform(context)
         if is_prefix_path:
             for path in is_prefix_path.split(":"):
-                args.append("--is-prefix-path")
-                args.append(path)
+                args.append("--is-prefix-path ")
+                args.append(f"{path} ")
                 print(f"is_prefix_path:   {path}")
 
+        # debug information
+        # print()
+        # print(f"cmd: {args}")
+        # print()
+
         # Create action.
         action = ExecuteProcess(
             cmd=[args],