Fixed HTTPS call for EL6 default Ruby 1.8.7 version

Author: Kristiaan Bonjean

lib/puppet/provider/grafana.rb

@@ -78,11 +78,12 @@ def send_request(operation="GET", path="", data=nil, search_path={})
             request.basic_auth resource[:grafana_user], resource[:grafana_password]
         end
 
-        return Net::HTTP.start(self.grafana_host, self.grafana_port,
-                               :use_ssl => self.grafana_scheme == 'https',
-                               :verify_mode => OpenSSL::SSL::VERIFY_NONE) do |http|
-            http.request(request)
+        http_client = Net::HTTP.new(self.grafana_host, self.grafana_port)
+        if self.grafana_scheme == 'https'
+          http_client.use_ssl = true
+          http_client.verify_mode = OpenSSL::SSL::VERIFY_NONE
         end
+        return http_client.request(request)
     end
 end