Why does rhevm-log-collector ignore default or specified "local-tmp" location and creates output tarball at /tmp ?

Issue

• rhevm-log-collector ignores default value for "--local-tmp" option and creates output tarball at /tmp .

# man rhevm-log-collector
[...]
       --local-tmp=PATH

              Local directory where reports are copied (default=/tmp/logcollector).

• rhevm-log-collector ignores specified value for "--local-tmp" option and creates output tarball at /tmp .

# rhevm-log-collector --local-tmp=/tmp/logcollector
WARNING: A deprecated configuration key has been found. Please replace the deprecated key, 'rhevm', with the new one 'engine' in /etc/ovirt-engine/logcollector.conf
INFO: /tmp/logcollector does not exist.  It will be created.    <--- Acknowledgment of desired/default location.
INFO: Gathering oVirt Engine information...
Please provide the password for the PostgreSQL user, postgres, to dump the engine PostgreSQL database instance (CTRL+D to skip): 
INFO: Gathering PostgreSQL the oVirt Engine database and log files from localhost...
Please provide the REST API password for the admin@internal oVirt Engine user (CTRL+D to skip): 
About to collect information from 2 hypervisors. Continue? (Y/n): n
INFO: Aborting hypervisor collection...
Creating compressed archive...
INFO: Log files have been collected and placed in /tmp/sosreport-LogCollector-20130625143213.tar.xz.  <--- tarball created at /tmp .
The MD5 for this file is 67d5fc7b0f2cd1fef083bdbfe1c92dbe and its size is 4.3M

Warning!

Setting --local-tmp=PATH will delete the directory after rhevm-log-collector command finishes. Please do not use it for existing directories as there is a chance of data loss.