Simple update alembic-1.8.8. Tested on amd64. OK?

Cheers Rafael

diff --git a/graphics/alembic/Makefile b/graphics/alembic/Makefile
index 41811f40765..a46bd0f8515 100644
--- a/graphics/alembic/Makefile
+++ b/graphics/alembic/Makefile
@@ -2,7 +2,7 @@ COMMENT=	open framework for storing and sharing scene data
 
 GH_ACCOUNT=	alembic
 GH_PROJECT=	alembic
-GH_TAGNAME=	1.8.5
+GH_TAGNAME=	1.8.8
 
 SHARED_LIBS +=  Alembic                   1.0 # 1.8
 
diff --git a/graphics/alembic/distinfo b/graphics/alembic/distinfo
index 55997dedeff..cdcd949a7d6 100644
--- a/graphics/alembic/distinfo
+++ b/graphics/alembic/distinfo
@@ -1,2 +1,2 @@
-SHA256 (alembic-1.8.5.tar.gz) = GAoS8I05HNifAh8nnb47VCOx23UamJhUDIBZpFglwuk=
-SIZE (alembic-1.8.5.tar.gz) = 867976
+SHA256 (alembic-1.8.8.tar.gz) = uh80VEYI730/aMr+qUbsnMhHkt35zaPo1VkIId9x9sY=
+SIZE (alembic-1.8.8.tar.gz) = 933258