Log Message:
-----------
Add dump support for SortBy nodes. Needed this while debugging a reported
problem with DISTINCT, so might as well commit it.
Modified Files:
--------------
pgsql/src/backend/nodes:
outfuncs.c (r1.327 -> r1.328)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/nodes/outfuncs.c?r1=1.327&r2=1.328)