Review Request: security_group.py checks the args length, doesn't throw IndexError when no args passed. Also logs to security_group.log when unknown command passed.

[Radoslaw Smigielski]

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https://reviews.apache.org/r/9588/
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Review request for cloudstack.


Description
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- security_group.py executed doesn't check if executed with any args and fails 
with "IndexError: list index out of range" when no args are passed. 
- security_group.py logs to /var/log/cloud/security_group.log when called with 
no args
- security_group.py logs to /var/log/cloud/security_group.log when called with 
unknown command 

This is mostly cosmetic patch.


Diffs
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  scripts/vm/network/security_group.py dcb01a7 

Diff: https://reviews.apache.org/r/9588/diff/


Testing
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Tested on 3.0.6 and 4.1.


Thanks,

Radoslaw Smigielski