From add4c11615d2c72ab1f779ffd354318ce65da213 Mon Sep 17 00:00:00 2001
From: Tobias Oetiker <tobi@oetiker.ch>
Date: Mon, 8 Feb 2016 13:51:40 +0100
Subject: [PATCH] - is not allowed in vnames!

---
 doc/rrdgraph_data.pod | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/rrdgraph_data.pod b/doc/rrdgraph_data.pod
index 4508cb0a..3424bc23 100644
--- a/doc/rrdgraph_data.pod
+++ b/doc/rrdgraph_data.pod
@@ -20,7 +20,7 @@ instructions use a language called B<RPN> which is described in its
 own manual page.
 
 Variable names (I<vname>) must be made up strings of the following characters
-C<A-Z, a-z, 0-9, -,_> and a maximum length of 255 characters.
+C<A-Z, a-z, 0-9, _> and a maximum length of 255 characters.
 
 When picking variable names, make sure you do not choose a name that is
 already taken by an RPN operator. A safe bet it to use lowercase or
-- 
2.47.2