Fix linux version being invalid

Author: Alzter

SourceCode/export_presets.cfg

@@ -69,7 +69,7 @@ codesign/custom_options=PoolStringArray(  )
 application/modify_resources=true
 application/icon="res://icon.ico"
 application/file_version=""
-application/product_version="0.4.1"
+application/product_version="0.0.4.1"
 application/company_name="SuperTux Team"
 application/product_name="SuperTux Classic"
 application/file_description="2D Platformer game!"