graphics/gifsicle: move manpages to share/man

Approved by:	portmgr (blanket)

graphics/gifsicle/Makefile

@@ -1,5 +1,6 @@
 PORTNAME=	gifsicle
 PORTVERSION=	1.94
+PORTREVISION=	1
 CATEGORIES=	graphics
 MASTER_SITES=	https://www.lcdf.org/gifsicle/
 
@@ -22,18 +23,19 @@ USES=		cpe
 CPE_VENDOR=	gifsicle_project
 
 GNU_CONFIGURE=	yes
+GNU_CONFIGURE_MANPREFIX=	${PREFIX}/share
 
 PORTDOCS=	NEWS.md README.md
 PLIST_FILES=	bin/gifdiff bin/gifsicle \
-		man/man1/gifdiff.1.gz man/man1/gifsicle.1.gz
+		share/man/man1/gifdiff.1.gz share/man/man1/gifsicle.1.gz
 
 .if ${FLAVOR} == x11
 USES+=			xorg
 USE_XORG=		ice sm x11
 CONFIGURE_ARGS=		--enable-gifview \
 			--with-x
 PLIST_FILES+=		bin/gifview \
-			man/man1/gifview.1.gz
+			share/man/man1/gifview.1.gz
 CONFLICTS_INSTALL=	gifsicle-nox11
 .else
 CONFLICTS_INSTALL=	gifsicle