mail/maildrop: Update to 3.1.2

- Added patch required to make it build when DOVECOTAUTH option is
  enabled.

mail/maildrop/Makefile

@@ -13,7 +13,7 @@
 # MAILDROP_MBOX_DIR=<dir>	Specify DEFAULT mailbox location
 
 PORTNAME=	maildrop
-PORTVERSION=	3.1.1
+PORTVERSION=	3.1.2
 CATEGORIES=	mail
 MASTER_SITES=	SF/courier/${PORTNAME}/${PORTVERSION}
 

mail/maildrop/distinfo

@@ -1,3 +1,3 @@
-TIMESTAMP = 1676888939
-SHA256 (maildrop-3.1.1.tar.bz2) = ec013cd755f3def739eba02702db42815d148851bbf1b6afba7e939e1483daaa
-SIZE (maildrop-3.1.1.tar.bz2) = 2156071
+TIMESTAMP = 1680680112
+SHA256 (maildrop-3.1.2.tar.bz2) = e499fb1cb5ad5949942d743932ca75edf4c25eb949a0df151864b115f691d592
+SIZE (maildrop-3.1.2.tar.bz2) = 2155497

mail/maildrop/files/patch-libs_maildrop_main.C

@@ -0,0 +1,27 @@
+--- libs/maildrop/main.C.orig	2023-03-05 01:40:24 UTC
++++ libs/maildrop/main.C
+@@ -404,11 +404,8 @@ static int callback_dovecotauth(struct dovecotauthinfo
+ 
+ 	if (VerboseLevel() > 1)
+ 	{
+-		std::string b;
++		std::string b = std::to_string(auth->sysgroupid);
+ 
+-		b.set(auth->sysgroupid);
+-		b.push(0);
+-
+ 		merr << "maildrop: dovecotauth: groupid="
+ 		     << b << "\n";
+ 	}
+@@ -436,10 +433,7 @@ static int callback_dovecotauth(struct dovecotauthinfo
+ 
+ 	if (VerboseLevel() > 1)
+ 	{
+-		std::string b;
+-
+-		b.set(u);
+-		b.push(0);
++		std::string b = std::to_string(u);
+ 
+ 		merr << "maildrop: dovecotauth: userid="
+ 		     << b << "\n";