SPARK-3082. yarn.Client.logClusterResourceDetails throws NPE if requeste...

...d queue doesn't exist

Author: Sandy Ryza <sandy@cloudera.com>

Closes #1984 from sryza/sandy-spark-3082 and squashes the following commits:

fe08c37 [Sandy Ryza] Remove log message entirely
85253ad [Sandy Ryza] SPARK-3082. yarn.Client.logClusterResourceDetails throws NPE if requested queue doesn't exist