Add error message if old alert rule tokens are read
Add error message if old alert rule tokens are read

AlekSi/prometheus,msiebuhr/prometheus,agaoglu/prometheus,GoogleCloudPlatform/prometheus,keegancsmith/prometheus,alileza/prometheus,GoogleCloudPlatform/prometheus,Conorbro/prometheus,GoogleCloudPlatform/prometheus,gottwald/prometheus,tattsun/prometheus,brancz/prometheus,tomwilkie/prometheus,dmilstein/prometheus,Gouthamve/prometheus,AlekSi/prometheus,PrFalken/prometheus,Conorbro/prometheus,keegancsmith/prometheus,adamron1/prometheus,prometheus/prometheus,JavierZunzunegui/prometheus,datajet-io/prometheus,keegancsmith/prometheus,gottwald/prometheus,JavierZunzunegui/prometheus,tomwilkie/prometheus,prometheus/prometheus,SaltedMan/prometheus-annotated,Stackdriver/stackdriver-prometheus,yanghongkjxy/prometheus,ton31337/prometheus,SaltedMan/prometheus-annotated,yanghongkjxy/prometheus,adamron1/prometheus,Gouthamve/prometheus,alileza/prometheus,amorken/prometheus,alileza/prometheus,kangwoo/prometheus,Colstuwjx/prometheus,adamron1/prometheus,Colstuwjx/prometheus,yanghongkjxy/prometheus,kzittritsch/prometheus,SaltedMan/prometheus-annotated,JavierZunzunegui/prometheus,tattsun/prometheus,GoogleCloudPlatform/prometheus,dsymonds/prometheus,kzittritsch/prometheus,keegancsmith/prometheus,slok/prometheus,Conorbro/prometheus,PrFalken/prometheus,agaoglu/prometheus,dmilstein/prometheus,ton31337/prometheus,datajet-io/prometheus,slok/prometheus,AlekSi/prometheus,dsymonds/prometheus,amorken/prometheus,alileza/prometheus,msiebuhr/prometheus,alileza/prometheus,dmilstein/prometheus,kangwoo/prometheus,AlekSi/prometheus,adamron1/prometheus,kangwoo/prometheus,tattsun/prometheus,tattsun/prometheus,kzittritsch/prometheus,tomwilkie/prometheus,Stackdriver/stackdriver-prometheus,kzittritsch/prometheus,amorken/prometheus,brancz/prometheus,Gouthamve/prometheus,dsymonds/prometheus,prometheus/prometheus,SaltedMan/prometheus-annotated,Colstuwjx/prometheus,dsymonds/prometheus,dmilstein/prometheus,slok/prometheus,JavierZunzunegui/prometheus,yanghongkjxy/prometheus,GoogleCloudPlatform/prometheus,Stackdriver/stackdriver-prometheus,Gouthamve/prometheus,slok/prometheus,prometheus/prometheus,ton31337/prometheus,agaoglu/prometheus,sudhi-vm/prometheus,keegancsmith/prometheus,sudhi-vm/prometheus,datajet-io/prometheus,msiebuhr/prometheus,tomwilkie/prometheus,sudhi-vm/prometheus,gottwald/prometheus,prometheus/prometheus,PrFalken/prometheus,kangwoo/prometheus,sudhi-vm/prometheus,Stackdriver/stackdriver-prometheus,ton31337/prometheus,gottwald/prometheus,Conorbro/prometheus,msiebuhr/prometheus,Colstuwjx/prometheus,brancz/prometheus,brancz/prometheus,PrFalken/prometheus,datajet-io/prometheus,agaoglu/prometheus,amorken/prometheus