Fixed Issues in Apache Sqoop

Review the list of Atlas issues that are resolved in Cloudera Runtime 7.1.8.

CDPD-30696: When Sqoop runs the Hive import in a new process it will preserve some of the environment variables of the parent process. From now on Sqoop will also automatically preserve the KRB5CCNAME environment variable, so in case of a customer Kerberos ticket file is used, the underlying beeline process will also be aware of it.
CDPD-31522: Change log messages in Sqoop not to encourage users use --direct option.