Merge pull request #144 from AutoModality/AM-695/empty-platform

fix: platform param provided when AM_PLATFORM is not AM-695/empty-platform

Author: Aaron Roller

launch/am_super.launch

@@ -1,6 +1,7 @@
 <?xml version="1.0" ?>
 <launch>
-    <arg name="platform" value="$(eval optenv('AM_PLATFORM'))" />
+    <arg name="platform" value="$(eval optenv('AM_PLATFORM'))" if="$(eval optenv('AM_PLATFORM') != '')" />
+    <arg name="platform" value="dev" if="$(eval optenv('AM_PLATFORM') == '')" />
     <node pkg="am_super" type="am_super" name="am_super" output="screen">
     	<rosparam command="load" file="$(find am_super)/launch/am_super.yaml" subst_value="true">
             <arg name="platform" value="$(arg platform)" />