Re: [RFC/PATCH git] http: avoid empty error messages for some curl errors

> When asked to fetch over SSL without a valid
> /etc/ssl/certs/ca-certificates.crt file, "git fetch" writes
>
> 	error:  while accessing https://github.com/torvalds/linux.git/info/refs
>
> which is a little disconcerting.  Better to fall back to
> curl_easy_strerror(result) when the error string is empty, like the
> curl utility does:
>
> 	error: Problem with the SSL CA cert (path? access rights?) while
> 	accessing https://github.com/torvalds/linux.git/info/refs
>
> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
> ---
> Hi,
>
> I ran into this error today because this machine has no certs enabled.
> I'm not thrilled with the following patch because the error string
> buffer is not cleared very often so it seems possible for it to be
> not empty but stale at the relevant moment.  I would be happier if we
> could rely on libcurl always filling the error buffer on errors.