Display name of error code instead of number

[jeroen]

When the curl command line has an error, the numeric value of the error enum is printed, for example below (35):

curl "https://packages.r-universe.dev"
curl: (35) OpenSSL/3.3.2: error:0A000458:SSL routines::tlsv1 unrecognized name

This is too very informative. We can easily convert this into readable code using curl_easy_option_by_id(x)->name such that we get the string CURLE_SSL_CONNECT_ERROR, which is a bit more informative.

Would it be a suggestion to print the error name (minus the curle_ prefix) such that it would look like:

curl: (ssl_connect_error) OpenSSL/3.3.2: error:0A000458:SSL routines::tlsv1 unrecognized name

curl/libcurl version

curl 8.10.1

[bagder]

I don't think we should remove the number. I think we should make sure to have the error string/explanation as good as possible.

[jeroen]

I think the named error code would be easier for users to google than a number. The error buffer is of course also important but sometimes that information does not explain why curl errored.

Either way, just a suggestion :)

[bagder]

I don't want to remove the number since it has been there for years and is now an established way curl shows errors. Also, the error name is not enough to fully explain most errors either - that's what we have a full error message for.