- Pass an empty string to CURLOPT_ACCEPT_ENCODING to use the default supported encodings. Prior to this change the specific encodings of gzip and deflate were set but there's no guarantee they'd be supported by the user's libcurl.
Make sure to not overwrite the reallocated pointer in realloc() calls to avoid a memleak on memory errors.
Apparently the C => HTML converter on the web site doesn't quite like it otherwise. Reported-by: Jeroen Ooms
Closes #2706
