type: escape colons in legend names

This problem showed up with IPv6 addresses in the NTP plugin.

Forgotten in commit:
v0.3-51-g330c94f [type: escape colons in filenames used in rrd commandline]

1 files changed, 1 insertions, 1 deletions

diff --git a/type/GenericIO.class.php b/type/GenericIO.class.php
index 3999ea6..bbbbea7 100644
--- a/type/GenericIO.class.php
+++ b/type/GenericIO.class.php
@@ -51,7 +51,7 @@ class Type_GenericIO extends Type_Default {
 
                 foreach($sources as $source) {
                         $dsname = $this->ds_names[$source] != '' ? $this->ds_names[$source] : $source;
-                        $rrdgraph[] = sprintf('LINE1:avg_%s#%s:\'%s\'', crc32hex($source), $this->colors[$source], $dsname);
+                        $rrdgraph[] = sprintf('LINE1:avg_%s#%s:\'%s\'', crc32hex($source), $this->colors[$source], $this->rrd_escape($dsname));
                         $rrdgraph[] = sprintf('GPRINT:min_%s:MIN:\'%s Min,\'', crc32hex($source), $this->rrd_format);
                         $rrdgraph[] = sprintf('GPRINT:avg_%s:AVERAGE:\'%s Avg,\'', crc32hex($source), $this->rrd_format);
                         $rrdgraph[] = sprintf('GPRINT:max_%s:MAX:\'%s Max,\'', crc32hex($source), $this->rrd_format);