[squid-dev] [PATCH] Extend SBufContainerJoin to have prefix and suffix arguments

[Kinkie]

Hi all,
  the attached patch extends SBufContainerJoin to have prefix and
suffix arguments. This can support a use-case which I found in the
current ACLRegexData work I'm following, where we need to transform
{"foo", "bar", "gazonk"}
into
(foo)|(bar)|(gazonk)

It can be done with the current version of the SBufContainerJoin
function, but it requires one more copy.
There are probably further cases of this pattern elsewhere, all hand-rolled.

-- 
    Francesco
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