Update mhash to version 0.9.1, which provides three new hashes.

Shorten COMMENT at portlint's suggestion.
Install a couple of docfiles.

security/mhash/Makefile

@@ -6,13 +6,13 @@
 #
 
 PORTNAME=	mhash
-PORTVERSION=	0.8.18
+PORTVERSION=	0.9.1
 CATEGORIES=	security
 MASTER_SITES=	${MASTER_SITE_SOURCEFORGE}
 MASTER_SITE_SUBDIR=	${PORTNAME}
 
 MAINTAINER=	roam@FreeBSD.org
-COMMENT=	Library provides an easy way to access strong hashes such as MD5 and SHA1
+COMMENT=	An easy-to-use library for strong hashes such as MD5 and SHA1
 
 INSTALLS_SHLIB=	yes
 USE_LIBTOOL_VER=13
@@ -22,4 +22,12 @@ CONFIGURE_ARGS+=	--with-LDFLAGS="${PTHREAD_LIBS}" --enable-static \
 
 MAN3=		mhash.3
 
+DOCFILES=	example.c md5-rfc1321.txt skid2-authentication
+
+.if !defined(NOPORTDOCS)
+post-install:
+		${MKDIR} ${DOCSDIR}
+		${INSTALL_DATA} ${DOCFILES:S,^,${WRKSRC}/doc/,} ${DOCSDIR}
+.endif
+
 .include <bsd.port.mk>

security/mhash/distinfo

@@ -1,2 +1,2 @@
-MD5 (mhash-0.8.18.tar.gz) = c5fcebff6753a03403cfed3ba8771a56
-SIZE (mhash-0.8.18.tar.gz) = 347483
+MD5 (mhash-0.9.1.tar.gz) = 8ade81ae33ccbf75e096c1baeecfd153
+SIZE (mhash-0.9.1.tar.gz) = 371330

security/mhash/pkg-plist

@@ -2,3 +2,7 @@ include/mhash.h
 lib/libmhash.a
 lib/libmhash.so
 lib/libmhash.so.2
+%%PORTDOCS%%%%DOCSDIR%%/example.c
+%%PORTDOCS%%%%DOCSDIR%%/md5-rfc1321.txt
+%%PORTDOCS%%%%DOCSDIR%%/skid2-authentication
+%%PORTDOCS%%@dirrm %%DOCSDIR%%