[Cocoon Wiki] Update of "LogAction" by BertrandDelacretaz

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The following page has been changed by BertrandDelacretaz:
http://wiki.apache.org/cocoon/LogAction

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      throws Exception {
          final String msg = parameters.getParameter("msg",null);
          if(msg!=null) {
+             // of course, the log level could come from a Parameter as well
              if(getLogger().isInfoEnabled()) {
                  getLogger().info(msg);
              }