added doc on new graphv graph_start und graph_end info variables

git-svn-id: svn://svn.oetiker.ch/rrdtool/branches/1.3@1745 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/program/doc/rrdgraph.pod b/program/doc/rrdgraph.pod
index d663266aa0e691251aa06f2242189e86cba7f757..4c752fb4f8be541b94cb5abfc344579254bb56e5 100644 (file)
--- a/program/doc/rrdgraph.pod
+++ b/program/doc/rrdgraph.pod
@@ -473,6 +473,8 @@ the output will look like this:
  graph_top = 22
  graph_width = 400
  graph_height = 100
+ graph_start = 1232908800
+ graph_end = 1232914200
  image_width = 481
  image_height = 154
  value_min = 0.0000000000e+00