[Python-checkins] python/dist/src/Lib urllib2.py,1.42,1.43

[Skip Montanaro]

    bcannon> Change Request.add_header to call string.capitalize in order to
    bcannon> normalize headers and not have any dependency on case.  Closes
    bcannon> patch #649742.

    bcannon> !         self.headers[key.capitalize()] = val

Maybe use key.title() instead?

    >>> "content-type".capitalize()
    'Content-type'
    >>> "content-type".title()
    'Content-Type'

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