On 2004/07/12 we grew 5 more callout images, but the default value

for %callout-graphics-number-limit% remained 10 in docbook-dsssl
and the new images were not used.  So we need to specify our own
value for %callout-graphics-number-limit%.

Note that in docbook-xsl callout.graphics.number.limit is 15 now.
OTOH docbook-dsssl hasn't been updated for 2 years and keeps the
old default.

share/sgml/freebsd.dsl

@@ -333,6 +333,10 @@
           ;; natively.
           ".png")
 
+        (define %callout-graphics-number-limit%
+          ;; Number of largest callout graphic
+          15)
+
         (define %callout-graphics-path%
           ;; Path to callout graphics
           "./imagelib/callouts/")