doc: compile dot into svg

Png images included into docs are useless because of small resolution.
http://docs.ceph.com/docs/master/dev/peering/#state-model

While SVG is vector and supported by Sphinx.

Signed-off-by: Aleksei Gutikov <aleksey.gutikov@synesis.ru>

diff --git a/admin/build-doc b/admin/build-doc
index 283f8aa7524627f3725e31835a1f8ce09e0b3b94..c8934b4daf789e6fd8e1fdd8b4ac48cb3415c35e 100755 (executable)
--- a/admin/build-doc
+++ b/admin/build-doc
@@ -111,6 +111,7 @@ for target in $sphinx_targets; do
     case $target in
         html)
             builder=dirhtml
+            extra_opt="-D graphviz_output_format=svg"
             ;;
         man)
             extra_opt="-t man"