replace_with_detailed_error

Tries to read detailed error information from response_data, if not provided, then from message's response_body.

If the detailed error cannot be found, then does nothing, otherwise frees the content of inout_error, if any, and then populates it with an error message prefixed with prefix.

The prefix might be of form "Failed to something", because the resulting error message will be: "Failed to something: HTTP error code XXX (reason_phrase): detailed_error". When prefix is null, the error message will be: "Failed with HTTP error code XXX (reason phrase): detailed_error".

As the caller might not be interested in errors, also the inout_error can be null, in which case the function does nothing.

Parameters:

this	an WebDAVSession
message	a Message
response_data	received response data, or null
ignore_multistatus	whether to ignore multistatus responses
prefix	error message prefix, used when replacing, or null

Returns:

Whether any detailed error had been recognized.