Mandoc now copes with .rn and \h'-...', drop USE_GROFF and bump.

While here, fix an escaping error causing information loss.

mail/procmail/Makefile

@@ -1,10 +1,10 @@
-# $OpenBSD: Makefile,v 1.41 2015/05/08 19:38:03 sthen Exp $
+# $OpenBSD: Makefile,v 1.42 2017/06/07 02:17:01 schwarze Exp $
 
 COMMENT=	filtering local mail delivery agent
 
 DISTNAME=	procmail-3.22
 CATEGORIES=	mail
-REVISION=	6
+REVISION=	7
 
 MASTER_SITES=	${HOMEPAGE} \
 		http://mirror.switch.ch/ftp/mirror/procmail/ \
@@ -24,7 +24,6 @@ WANTLIB=		c m
 FLAVORS=	lmtp
 FLAVOR?=
 
-USE_GROFF =	Yes
 .if ${FLAVOR:Mlmtp}
 CFLAGS+=	-DLMTP
 .endif

mail/procmail/patches/patch-man_procmailrc_man

@@ -0,0 +1,16 @@
+$OpenBSD: patch-man_procmailrc_man,v 1.1 2017/06/07 02:17:01 schwarze Exp $
+
+Fix escaping error that causes information loss.
+
+Index: man/procmailrc.man
+--- man/procmailrc.man.orig
++++ man/procmailrc.man
+@@ -779,7 +779,7 @@ one trailing newline will be stripped.
+ .PP
+ Some non-optimal and non-obvious regexps set MATCH to an incorrect
+ value.  The regexp can be made to work by removing one or more unneeded
+-'*', '+', or '?' operator on the left-hand side of the \e/ token.
++\&'*', '+', or '?' operator on the left-hand side of the \e/ token.
+ .SH MISCELLANEOUS
+ If the regular expression contains `\fB@TO_key@\fP' it will be substituted by
+ .na