Fix for ZEN-10572
The powershell command was putting a carriage return in returned data which caused
the results to shift. The end result was index errors and corrupted data.
Update to location of additional buffersize command.
Since the buffersize should be set on all commands I relocated to the
boilerplate psClusterCommands line.
Merge pull request #131 from zenoss/feature/clusterfix-10572

Fix for ZEN-10572