Minor cleanups to MultipleNodeError
Minor cleanups to MultipleNodeError

- remove duplicate "number" value in string output
- cosmetic changes, changing
    data = (Ovf.getNodes(node, 'rasd:ElementName')[0].firstChild.data)
    info += data
  to
    info += (Ovf.getNodes(node, 'rasd:ElementName')[0].firstChild.data)

  parentheses there are due to line breaks.

Signed-off-by: Scott Moser <f411aed5b71f5ab75e7f202cdde1f0f4410975aa@linux.vnet.ibm.com>

Awingu/open-ovf,Awingu/open-ovf,Awingu/open-ovf,Awingu/open-ovf