make ruby bindings compile with newer ruby versions ... fix for #217
authoroetiker <oetiker@a5681a0c-68f1-0310-ab6d-d61299d08faa>
Tue, 14 Apr 2009 13:55:29 +0000 (13:55 +0000)
committeroetiker <oetiker@a5681a0c-68f1-0310-ab6d-d61299d08faa>
Tue, 14 Apr 2009 13:55:29 +0000 (13:55 +0000)
patch provided by rrd trac user.

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk/program@1791 a5681a0c-68f1-0310-ab6d-d61299d08faa


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