Log rb cleanup
Log rb cleanup

- Rename log_buf_not_empty_output to something sane and drop
uneeded null test.
- Move rb queueing code to function.

Signed-off-by: Mike Christie <39daeb1549a929782e38aa87c4e3da7f3844b09a@redhat.com>

agrover/tcmu-runner,open-iscsi/tcmu-runner,open-iscsi/tcmu-runner