+ perl 5.10 & el6 compatibility (#949)
+ perl 5.10 & el6 compatibility (#949)

Fix https://github.com/centreon/centreon-plugins/issues/945
Sims24/centreon-plugins,Tpo76/centreon-plugins,Tpo76/centreon-plugins,wilfriedcomte/centreon-plugins,centreon/centreon-plugins,Sims24/centreon-plugins,centreon/centreon-plugins