Added rule name to rule error for easier debugging (#3549)
Added rule name to rule error for easier debugging (#3549)


Stackdriver/stackdriver-prometheus,Gouthamve/prometheus,Conorbro/prometheus,keegancsmith/prometheus,alileza/prometheus,keegancsmith/prometheus,AlekSi/prometheus,Gouthamve/prometheus,kangwoo/prometheus,Stackdriver/stackdriver-prometheus,GoogleCloudPlatform/prometheus,AlekSi/prometheus,kangwoo/prometheus,Conorbro/prometheus,Stackdriver/stackdriver-prometheus,amorken/prometheus,alileza/prometheus,alileza/prometheus,kangwoo/prometheus,prometheus/prometheus,brancz/prometheus,prometheus/prometheus,keegancsmith/prometheus,prometheus/prometheus,Gouthamve/prometheus,keegancsmith/prometheus,kangwoo/prometheus,GoogleCloudPlatform/prometheus,keegancsmith/prometheus,brancz/prometheus,amorken/prometheus,prometheus/prometheus,Conorbro/prometheus,prometheus/prometheus,amorken/prometheus,alileza/prometheus,brancz/prometheus,Gouthamve/prometheus,AlekSi/prometheus,brancz/prometheus,GoogleCloudPlatform/prometheus,AlekSi/prometheus,GoogleCloudPlatform/prometheus,GoogleCloudPlatform/prometheus,alileza/prometheus,amorken/prometheus,Conorbro/prometheus,Stackdriver/stackdriver-prometheus