groff: pre_build_cmd is no more.

--HG--
extra : convert_revision : a239cfd8612f3d8a13030bdbd1d01d1436264ae0

templates/groff.tmpl

@@ -18,5 +18,8 @@ long_desc="
 
 run_depends="glibc-2.8"
 
-# The install target fails if the dir is not there already.
+pre_install()
-pre_install_cmd="mkdir -p $XBPS_DESTDIR/$pkgname-$version/usr"
+{
+	# The install target fails if the dir is not there already.
+	mkdir -p $XBPS_DESTDIR/$pkgname-$version/usr
+}