code: protected void logAggregation(final Deque<? extends BasicInclude> elements, final String fileName) {
          if (this.logger.isDebugEnabled()) {
              final StringBuilder msg = new StringBuilder("Aggregated ")
                  .append(fileName)
                  .append(" from ")
                  .append(generatePathList(elements));
              
              this.logger.debug(msg);
          }
      }
docs: Log the result of an aggregation