Log4j2.yaml configures loggers incorrectly (#1801)
Log4j2.yaml configures loggers incorrectly (#1801)

log4j2.yaml has a list of loggers. However, this is not a yaml list,
but a yaml map, so the configuration only picks up the last one.

This patch changes the loggers to a yaml list.
jai1/pulsar,massakam/pulsar,jai1/pulsar,yahoo/pulsar,jai1/pulsar,merlimat/pulsar,merlimat/pulsar,massakam/pulsar,massakam/pulsar,massakam/pulsar,nkurihar/pulsar,nkurihar/pulsar,yahoo/pulsar,yahoo/pulsar,jai1/pulsar,yahoo/pulsar,jai1/pulsar,nkurihar/pulsar,merlimat/pulsar,ArvinDevel/incubator-pulsar,ArvinDevel/incubator-pulsar,yahoo/pulsar,massakam/pulsar,jai1/pulsar,ArvinDevel/incubator-pulsar,ArvinDevel/incubator-pulsar,ArvinDevel/incubator-pulsar,nkurihar/pulsar,jai1/pulsar,ArvinDevel/incubator-pulsar,nkurihar/pulsar,nkurihar/pulsar,jai1/pulsar,nkurihar/pulsar,yahoo/pulsar,ArvinDevel/incubator-pulsar,merlimat/pulsar,ArvinDevel/incubator-pulsar,nkurihar/pulsar,nkurihar/pulsar,merlimat/pulsar,massakam/pulsar,merlimat/pulsar,jai1/pulsar