drbd-utils: add docbook-xsl to host to prevent downloads

Without this, xsltproc will fetch files during build.

Author: q66

srcpkgs/drbd-utils/template

@@ -24,7 +24,7 @@ maintainer="Enno Boland <gottox@voidlinux.org>"
 license="GPL-2"
 homepage="http://www.drbd.org"
 makedepends="eudev-libudev-devel"
-hostmakedepends="automake libtool flex pkg-config eudev libxslt"
+hostmakedepends="automake libtool flex pkg-config eudev libxslt docbook-xsl"
 distfiles="https://www.drbd.org/download/drbd/utils/drbd-utils-$version.tar.gz"
 checksum=c61878635c40536e7d689c65cbbe92ca982fa864cec20717c0af562f2a6c9c48