Fix typo (#4497)
Fix typo (#4497)

Signed-off-by: yzpeninsula <0d6bff26e3d7cab14a62167e3ddc79e4a4ab5e27@gmail.com>
keegancsmith/prometheus,prometheus/prometheus,keegancsmith/prometheus,Gouthamve/prometheus,prometheus/prometheus,alileza/prometheus,prometheus/prometheus,alileza/prometheus,kangwoo/prometheus,prometheus/prometheus,alileza/prometheus,GoogleCloudPlatform/prometheus,Gouthamve/prometheus,alileza/prometheus,GoogleCloudPlatform/prometheus,kangwoo/prometheus,GoogleCloudPlatform/prometheus,prometheus/prometheus,keegancsmith/prometheus,kangwoo/prometheus,keegancsmith/prometheus,alileza/prometheus,kangwoo/prometheus,GoogleCloudPlatform/prometheus,keegancsmith/prometheus,GoogleCloudPlatform/prometheus,Gouthamve/prometheus,Gouthamve/prometheus