diff -r 38466f4f3483 -r 6fb98a20c349 src/Pure/PIDE/markup.scala
--- a/src/Pure/PIDE/markup.scala	Thu Jul 18 13:12:54 2013 +0200
+++ b/src/Pure/PIDE/markup.scala	Thu Jul 18 20:53:22 2013 +0200
@@ -303,7 +303,8 @@
 
   val SENDBACK = "sendback"
   val PADDING = "padding"
-  val PADDING_LINE = (PADDING, LINE)
+  val PADDING_LINE = (PADDING, "line")
+  val PADDING_COMMAND = (PADDING, "command")
 
   val DIALOG = "dialog"
   val Result = new Properties.String(RESULT)