Ian Wienand 29202eba1a zuul-lb : issue HEAD / checks
As found in Ie5d55b2a2d96a78b34d23cc6fbac62900a23fc37, the default for
this is to issue "OPTIONS /" which is kind of a weird request.  The
Zuul hosts currently seem to return the main page content in response
to a OPTIONS request, which probably isn't right.

Make this more robust by just using "HEAD /" request.

Change-Id: Ibbd32ae744af9c33aedd087a8146195844814b3f
2022-03-08 10:24:03 +11:00
..
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2022-03-08 10:24:03 +11:00
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