cad/opencascade: the initial tarball has been reworked

Upstream reworked the tarball to integrate several patches without bumping
revision.

PR:		277881
Reported by:	Sergey Kiselev

cad/opencascade/Makefile

@@ -1,7 +1,9 @@
 PORTNAME=	opencascade
 DISTVERSIONPREFIX=	V
 DISTVERSION=	7_8_0
+PORTREVISION=	1
 CATEGORIES=	cad science
+DIST_SUBDIR=	${PORTNAME}-${DISTVERSION}
 
 MAINTAINER=	thierry@FreeBSD.org
 COMMENT=	Open CASCADE Technology, 3D modeling & numerical simulation

cad/opencascade/distinfo

@@ -1,5 +1,5 @@
-TIMESTAMP = 1711092244
-SHA256 (documentation.tar.xz) = 096cd0f268fa9f6a50818e1d628ac92ecf87e10fd72187e2e8d6be57dfe12530
-SIZE (documentation.tar.xz) = 48428565
-SHA256 (Open-Cascade-SAS-OCCT-V7_8_0_GH0.tar.gz) = 3c5cdd70de9c82d9f0be4b9400d618494cfecd28f502d110111060c9aaaf50c7
-SIZE (Open-Cascade-SAS-OCCT-V7_8_0_GH0.tar.gz) = 48428333
+TIMESTAMP = 1711099991
+SHA256 (opencascade-7_8_0/documentation.tar.xz) = 096cd0f268fa9f6a50818e1d628ac92ecf87e10fd72187e2e8d6be57dfe12530
+SIZE (opencascade-7_8_0/documentation.tar.xz) = 48428565
+SHA256 (opencascade-7_8_0/Open-Cascade-SAS-OCCT-V7_8_0_GH0.tar.gz) = 096cd0f268fa9f6a50818e1d628ac92ecf87e10fd72187e2e8d6be57dfe12530
+SIZE (opencascade-7_8_0/Open-Cascade-SAS-OCCT-V7_8_0_GH0.tar.gz) = 48428565