highkic

http接口获取到的 mbvar转prometheus metrics 格式, 提示格式非法

2

**Describe the bug (描述bug)** 通过brpc_metrics接口获取mbvar 转化来的多lables guage打点，提示type非法 具体的值: ``` # HELP lat_rank_score_total_latency{system="unknown",module="unknown",server="rank_server_nbase",status="0"} # TYPE lat_rank_score_total_latency{system="unknown",module="unknown",server="rank_server_nbase",status="0"} gauge lat_rank_score_total_latency{system="unknown",module="unknown",server="rank_server_nbase",status="0"} 22 ``` **To Reproduce (复现方法)** ``` typedef bvar::MultiDimension MLatencyRecorder; MLatencyRecorder lat_rank_score_total("lat_rank_score_total", {"system", "module",...