K 10
svn:author
V 3
tjr
K 8
svn:date
V 27
2004-08-16T14:18:22.000000Z
K 7
svn:log
V 247
Store a pointer to "null" in struct ndblock's defn member instead of a
duplicate allocated on the heap; the address defn points to is significant,
and is checked against the address of "null" in certain conditionals.

PR:		59883
MFC after:	1 week

END