Log Message:
- Update to sendmail 8.13.4
- Remove old patch-ai
- From the ChangeLog:
> 	The bug fixes in 8.13.3 for connection handling uncovered a
> 		different error which could result in connections that
> 		stay in CLOSE_WAIT state due to a variable that was not
> 		properly initialized.  Problem noted by Michael Sims.
> 	Deal with empty hostnames in hostsignature().  This bug could lead
> 		to an endless loop when doing LMTP deliveries to another
> 		host.  Problem first reported by Martin Lathoud and
> 		tracked down by Gael Roualland.
> 	Make sure return parameters are initialized in getmxrr().  Problem
> 		found by Gael Roualland using valgrind.
> 	If shared memory is used and the RunAsUser option is set, then the
> 		owner and group of the shared memory segment is set to
> 		the ids specified RunAsUser and the access mode is set
> 		to 0660 to allow for updates by sendmail processes.
> 	The number of queue entries that is (optionally) kept in shared
> 		memory was wrong in some cases, e.g., envelope splitting
> 		and bounce generation.
> 	Undo a change made in 8.13.0 to silently truncate long strings
> 		in address rewriting because the message can be triggered
> 		for header checks where long strings are legitimate.
> 		Problem reported by Mary Verge DeSisto, and tracked
> 		down with the help of John Beck of Sun Microsystems.
> 	The internal stab map did not obey the -m flag.  Patch from
> 		Rob McMahon of Warwick University, England.
> 	The socket map did not obey the -f flag.  Problem noted by
> 		Dan Ringdahl, forwarded by Andrzej Filip.
> 	The addition of LDAP recursion in 8.13.0 broke enforcement of
> 		the LDAP map -1 argument which tells the MTA to only
> 		return success if and only if a single LDAP match is found.
> 	Add additional error checks in the MTA for milter communication
> 		to avoid a possible segmentation fault.  Based on patch
> 		by Joe Maimon.
> 	Do not trigger an assertion if X509_digest() returns success but
> 		does not assign a value to its output parameter.  Based
> 		on patch by Brian Kantor.
> 	Add more checks when resetting internal AUTH data (applies only
> 		to Cyrus SASL version 2).  Otherwise an SMTP session might
> 		be dropped after an AUTH failure.
> 	Portability:
> 		Add LA_LONGLONG as valid LA_TYPE type for systems that use
> 			"long long" to read load average data, e.g.,
> 			AIX 5.1 in 32 bit mode.  Note: this has to be set
> 			"by hand", it is not (yet) automatically detected.
> 			Problem noted by Burak Bilen.
> 		Use socklen_t for accept(), etc. on AIX 5.x.  This should
> 			fix problems when compiling in 64 bit mode.
> 			Problem first reported by Harry Meiert of
> 			University of Bremen.