ElementTree and cElementTree give slightly different results for
repr(Element):

>>> import xml.etree.ElementTree as ET
>>> import xml.etree.cElementTree as cET
>>> repr(ET.ElementTree('tag'))
'<Element tag at b7cf506c>'
>>> repr(cET.ElementTree('tag')
"<Element 'tag' at 0xb7c266f8>"

The quoting around the tag name is missing from ElementTree.

This inconsistency seems pointless.

Attached patch changes ElementTree to match cElementTree behaviour, and
adds a test.