Document max-db-size and auto-propagate.

diff -urpN man-pages-2.51.orig/man5/nscd.conf.5 man-pages-2.51/man5/nscd.conf.5
--- man-pages-2.51.orig/man5/nscd.conf.5	2007-05-11 20:38:22.000000000 +0200
+++ man-pages-2.51/man5/nscd.conf.5	2007-06-04 13:51:49.000000000 +0200
@@ -183,6 +183,25 @@ is shared with the clients so
 that they can directly search in them instead of having to ask the
 daemon over the socket each time a lookup is performed.
 .RE
+
+.B max-db-size
+.I service
+.I number-of-bytes
+.RS
+The maximum allowable size for the service.
+.RE
+
+.B auto-propagate
+.I service
+.I <yes|no>
+.RS
+When set to
+.IR no " for " passwd " or " group " service, then the " .byname
+requests are not added to 
+.IR passwd.byuid " or " group.bygid
+cache.
+This may help for tables containing multiple records for the same id.
+.RE
 .SH "SEE ALSO"
 .BR nscd (8)
 .SH AUTHOR