Inconsistent inclusion of license info in headers

[rsteinke w-link net]

Poking through the gtk+ headers, I noticed that while most have
the obligatory license language at the top, many do not. Is
this due to a change in policy at some point in the development
history? The files in question are:

glib:

glibintl.h
gunibreak.h (autogenerated)
gunichartables.h (autogenerated)
gunicomp.h
gunidecomp.h (autogenerated)

gobject:

gmarshal.h (autogenerated)

pango:

module-defs.h (autogenerated)
pango-enum-types.h (autogenerated)

atk:

atk-enum-types.h (autogenerated)
atkintl.h
atkmarshal.h (autogenerated)

gdk:

gdkcolor.h
gdkconfig.h (autogenerated)
gdkcursor.h
gdkdnd.h
gdkdrawable.h
gdkenumtypes.h
gdkevents.h
gdkfont.h
gdkgc.h
gdkimage.h
gdkinput.h
gdkintl.h
gdkpixbuf.h
gdkpixmap.h
gdkproperty.h
gdkregion.h
gdkselection.h
gdkvisual.h
gdkwindow.h
x11/gxid_proto.h
win32/xcursors.h
linux-fb/gdkfb.h
linux-fb/mi.h
linux-fb/mitypes.h

gdk-pixbuf:

gdk-pixbuf-enum-types.h (autogenerated)
gdk-pixbuf-features.h
gdk-pixbuf-i18n.h
gdk-pixbuf-marshal.h (autogenerated)

gtk:

gtkintl.h
gtkmarshal.h (autogenerated)
gtkmarshalers.h (autogenerated)
gtktextbtree.h
gtktextiterprivate.h
gtktextmarkprivate.h
gtktextsegment.h
gtktexttag.h
gtktexttagprivate.h
gtktexttagtable.h
gtktexttypes.h
gtktypebuiltins.h (autogenerated)
xembed.h

Any errors in this list are of course mine.

Ron Steinke