I was looking at https://issues.apache.org/bugzilla/show_bug.cgi?id=48301
which asks for a way to distinguish in the log whether a connection was aborted by the web server or the other end. To do that, we'd need to note the cause of the abort in the connection structure. I was hoping to just use another non-zero value for connect->abort, but it turns out that connect->abort is a 1-bit field. In trunk we could just expand that field, or add another field. But is there a way we could add this feature in 2.2 without breaking the API?
