oops, add outside-staff-padding to grob-interface

diff --git a/lily/grob.cc b/lily/grob.cc
index 4e7a3e196ebe352fee72f34985742d8d3e54e9e6..e377494e7c0022bfe1af74797a035ee13ede77c3 100644 (file)
--- a/lily/grob.cc
+++ b/lily/grob.cc
@@ -621,6 +621,7 @@ ADD_INTERFACE (Grob,
               "meta "
               "minimum-X-extent "
               "minimum-Y-extent "
+              "outside-staff-padding "
               "outside-staff-priority "
               "rotation "
               "springs-and-rods "