package/leafnode2: fix news user check

--enable-runas-user use 'news' as default but the configure stop
if news doesn't exist on the build host.
Use 'root' while cross-compiling

Signed-off-by: Romain Naour <romain.naour@openwide.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/leafnode2/leafnode2.mk

@@ -14,9 +14,13 @@ LEAFNODE2_DEPENDENCIES = host-pcre pcre
 LEAFNODE2_CONF_ENV = \
 	PCRECONFIG="$(STAGING_DIR)/usr/bin/pcre-config"
 
+# --enable-runas-user use 'news' as default but the configure stop
+# if news doesn't exist on the build host.
+# Use 'root' while cross-compiling 
 LEAFNODE2_CONF_OPTS = \
 	--sysconfdir=/etc/leafnode2 \
-	--enable-spooldir=/var/spool/news
+	--enable-spooldir=/var/spool/news \
+	--enable-runas-user=root
 
 # Leafnode2 needs the host version of b_sortnl during
 # compilation. Instead of creating a seperate host package and