flush_newline_if_pending

# File actionview/lib/action_view/template/handlers/erb/erubi.rb, line 79
          def flush_newline_if_pending(src)
            if @newline_pending > 0
              src << bufvar << ".safe_append='#{"\n" * @newline_pending}'.freeze;"
              @newline_pending = 0
            end
          end