- Add patch to work around the problem where maildrop exits with

"flock() failed" error when an attempting to route messages to /dev/null.
  Patch is submitted upstream.
- Bump PORTREVISION

PR:		ports/80106
Submitted by:	David Lay <dsl@webize.com.au>

mail/maildrop/Makefile

@@ -17,7 +17,7 @@
 
 PORTNAME=	maildrop
 PORTVERSION=	1.8.0
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	mail
 MASTER_SITES=	${MASTER_SITE_SOURCEFORGE}
 MASTER_SITE_SUBDIR=	courier

mail/maildrop/files/patch-filelock.C

@@ -0,0 +1,11 @@
+--- maildrop/filelock.C.orig	Sat Apr 29 03:17:45 2000
++++ maildrop/filelock.C	Fri Apr 15 13:09:25 2005
+@@ -64,7 +64,7 @@
+ 		// you're writing to a device file, you know what you're doing.
+ 
+ 		if (fstat(fd, &stat_buf) >= 0 && (
+-			S_ISREG(stat_buf.st_mode) || S_ISDIR(stat_buf.st_mode)))
++			S_ISCHR(stat_buf.st_mode) || S_ISBLK(stat_buf.st_mode)))
+ 		{
+ 			return;
+ 		}