horizontal is the correct spelling

git-svn-id: svn://svn.oetiker.ch/rrdtool/branches/1.2@1195 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/program/doc/rrdgraph_graph.pod b/program/doc/rrdgraph_graph.pod
index 6546ab5ba524d058461edf9214ce7322e2ef00bc..93bc1dd37f7769823f0d6eb6e058d3c1883e7c1c 100644 (file)
--- a/program/doc/rrdgraph_graph.pod
+++ b/program/doc/rrdgraph_graph.pod
@@ -238,7 +238,7 @@ from a B<VDEF>. It is an error to use I<vname>s from B<DEF> or B<CDEF> here.
 
 =item B<HRULE>B<:>I<value>B<#>I<color> [ :I<legend> ]
 
-Draw a horyzontal line at I<value>.  HRULE acts much like LINE except that
+Draw a horizontal line at I<value>.  HRULE acts much like LINE except that
 will have no effect on the scale of the graph. If a HRULE is outside the
 graphing area it will just not be visible.