apt-get更新和现在我的错误日志是否充满[debug]类型输出。我从来没有见过这种类型的输出，所以我很难搞清楚从哪里开始。我的错误报告设置为E_ALL & ~E_DEPRECATED & ~E_STRICT
示例日志输出：
2016/02/05 13:04:28 [debug] 2960#0: *7 http fastcgi record byte: 08
2016/02/05 13:04:28 [debug] 2960#0: *7 http fastcgi record byte: 00
2016/02/05 13:04:28 [debug] 2960#0: *7 http fastcgi record length: 8
2016/02/05 13:04:28 [debug] 2960#0: *7 http fastcgi sent end request
2016/02/05 13:04:28 [debug] 2960#0: *7 input buf 00007FBBE71A0F4D 79
2016/02/05 13:04:28 [debug] 2960#0: *7 pipe write downstream: 1
2016/02/05 13:04:28 [debug] 2960#0: *7 pipe write downstream flush in