Added comments and no target pre-flights to the makefile test.

tests/yaml_samples/makefile_1.kibot.yaml

@@ -3,9 +3,11 @@ kibot:
 
 preflight:
   run_erc: true
+  check_zone_fills: true
 
 outputs:
   - name: 'position'
+    comment: 'Pick & place files'
     type: position
     dir: positiondir
     options:
@@ -15,10 +17,12 @@ outputs:
       only_smd: true
 
   - name: 'interactive_bom'
+    comment: 'Interactive assembly guide'
     type: ibom
     dir: ibom
 
   - name: 'archive'
+    comment: 'Compressed files'
     type: compress
     options:
       files: