Author: Tsantilas Christos <chtsanti@users.sourceforge.net>

Author: Tsantilas Christos <chtsanti@users.sourceforge.net>
Append the _ABORTED or _TIMEDOUT suffixes to the action access.log field.

 * When an HTTP connection with a client times out, append _TIMEDOUT suffix
to the Squid result code field in access.log.

 * When an HTTP connection with the client is terminated prematurely by
Squid, append _ABORTED suffix to the result code field in access.log.
Premature connection termination may happen when, for example, I/O
errors or server side-problems force Squid to terminate the master
transaction and close all associated connections.

The above changes make it possible to identify failed transactions even
when they have 200/200 received/send response status codes and a
"successful" Squid result code (e.g., TCP_MISS). This is important when
one does not want 1-hour "stuck" transactions for 15-byte GIFs to
significantly skew the mean response time statistics. Such transactions
eventually terminate due to, say, TCP errors, and the old code would
record huge response times for successfully-looking transactions.

The development sponsored by the Measurement Factory