Check for maximum number of redirections according to
<https://tools.ietf.org/html/rfc7231#section-6.4>.

A practical limit can be 5, due to old RFC:
<https://tools.ietf.org/html/rfc2068#section-10.3>, this limit is
reported also in more recent RFCs, see final paragraph of RFC7231, 6.4.

Change-Id: I2b394ef8d1ef391a527df349aa749819c496657b
Reviewed-on: https://gerrit.libreoffice.org/28066Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Giuseppe Castagno <giuseppe.castagno@acca-esse.eu>