Improving the help of the lock command
Improving the help of the lock command

The lock command allows you to block the actions
on the server for the non-admin users. Improving
the help so that api users understands better
what locking a server implies.

Change-Id: Ibccdd672587c4dc9570b86f0132a64204fe9b5c2
Closes-Bug: #1366279

guptaankita/python-novaclient,mat128/python-novaclient,takeshineshiro/python-novaclient,CCI-MOC/python-novaclient,guptaankita/python-novaclient,mat128/python-novaclient,takeshineshiro/python-novaclient,CCI-MOC/python-novaclient