we now use it to provide more info back on connect failures.

take a CURLcode as a second argument, that is non-zero when Curl_done()
is called after an error was returned from Curl_do() (or similar).

to deliver

instead of using snprintf() + strdup().

we typecast on invoke.

causes xlc and gcc act differently on AIX.

James Bursa only modified by me.

memory.h is included everywhere for this.

Also some minor edits.

that list in case something goes wrong in the function and we must bail out.
Courtesy of the torture testing.

previously they could return a piece of the string, making it impossible
for the caller to detect errors.

happens

When failing, it should not tamper at all with the data it was supposed to
add to the cache.

quotes...

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