Different syntax for .cfg and .mapcss validator files

[naoliv]

Unless I can't see a problem here, it seems that JOSM differently loads a .cfg from a .mapcss validator file:

INFO: Adding /home/naoliv/file:/home/naoliv/.josm/validador-local.mapcss to tag checker
WARNING: java.lang.RuntimeException: Failed to add /home/naoliv/file:/home/naoliv/.josm/validador-local.mapcss to tag checker. Cause: java.io.FileNotFoundException: file:/home/naoliv/.josm/validador-local.mapcss (No such file or directory)
java.lang.RuntimeException: Failed to add /home/naoliv/file:/home/naoliv/.josm/validador-local.mapcss to tag checker
	at org.openstreetmap.josm.data.validation.tests.MapCSSTagChecker.initialize(MapCSSTagChecker.java:401)
	at org.openstreetmap.josm.data.validation.OsmValidator.initializeTests(OsmValidator.java:297)
	at org.openstreetmap.josm.data.validation.OsmValidator.<init>(OsmValidator.java:140)
	at org.openstreetmap.josm.Main$2.call(Main.java:477)
	at org.openstreetmap.josm.Main$2.call(Main.java:464)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:744)
Caused by: java.io.FileNotFoundException: file:/home/naoliv/.josm/validador-local.mapcss (No such file or directory)
	at java.io.FileInputStream.open(Native Method)
	at java.io.FileInputStream.<init>(FileInputStream.java:146)
	at java.io.FileInputStream.<init>(FileInputStream.java:101)
	at org.openstreetmap.josm.data.validation.tests.MapCSSTagChecker.initialize(MapCSSTagChecker.java:399)
	... 8 more

Note how both the .cfg and .mapcss are being included:

It works for the .cfg one.