Fixes up a COM Error message by stripping off the OLE Dispatch error message in the front of the string if it's present.

Turns:

OLE IDispatch exception code 0 from wwDotNetBridge: Invalid extension `attridbutes` from `attridbutes`"

into:

Invalid extension `attridbutes` from `attridbutes`"

o.FixComErrorMessage(lcErrorMsg)