fix gpx file so name has also desc text

#!/usr/bin/env python

FILENAME="Lesvos Birdings map of birding sites-Steve Dudley.gpx"

from lxml import etree

tree = etree.parse(FILENAME)
root = tree.getroot()

for wpt in tree.xpath('//wpt'):
    name = None
    desc = None
    cmt = None

    for child in wpt:
        if (child.tag == 'name'):
            name = child
        elif (child.tag == 'desc'):
            desc = child
        elif (child.tag == 'cmt'):
            cmt = child

    name.text += ': '
    name.text += desc.text

print (etree.tostring(root, pretty_print=True))