mail/dovecot: revert removing patch that is still needed.

PR:		240607

mail/dovecot/Makefile

@@ -9,7 +9,7 @@
 
 PORTNAME=	dovecot
 PORTVERSION=	2.3.8
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	mail
 MASTER_SITES=	https://dovecot.org/releases/2.3/
 

mail/dovecot/files/patch-src_master_main.c

@@ -0,0 +1,11 @@
+--- src/master/main.c.orig	2018-11-23 11:06:45 UTC
++++ src/master/main.c
+@@ -862,6 +862,8 @@ int main(int argc, char *argv[])
+ 		i_fatal("dup2(dev_null_fd) failed: %m");
+ 	if (!foreground && dup2(dev_null_fd, STDOUT_FILENO) < 0)
+ 		i_fatal("dup2(dev_null_fd) failed: %m");
++	if (!foreground && dup2(dev_null_fd, STDERR_FILENO) < 0)
++		i_fatal("dup2(dev_null_fd) failed: %m");
+ 
+ 	pidfile_path =
+ 		i_strconcat(set->base_dir, "/"MASTER_PID_FILE_NAME, NULL);