fixed an issue in TestWALRestoreCorrupted
fixed an issue in TestWALRestoreCorrupted

keegancsmith/prometheus,Gouthamve/prometheus,Gouthamve/tsdb,GoogleCloudPlatform/prometheus,keegancsmith/prometheus,alileza/prometheus,keegancsmith/prometheus,kangwoo/prometheus,prometheus/tsdb,GoogleCloudPlatform/prometheus,GoogleCloudPlatform/prometheus,keegancsmith/prometheus,alileza/prometheus,prometheus/prometheus,GoogleCloudPlatform/prometheus,GoogleCloudPlatform/prometheus,prometheus/prometheus,kangwoo/prometheus,Gouthamve/prometheus,kangwoo/prometheus,prometheus/prometheus,kangwoo/prometheus,alileza/prometheus,alileza/prometheus,Gouthamve/prometheus,prometheus/prometheus,keegancsmith/prometheus,Gouthamve/prometheus,prometheus/prometheus,alileza/prometheus