build.sh: use our own distribution name instead of 'unstable' in d/changelog

build.sh

@@ -118,7 +118,7 @@ for p in patches/*; do
 		chdist_base apt-get source --only-source -t "$BASESUITE" "$p"
 		cd "$p-"*
 		dch --local "+$OURSUITE" "apply mnt reform patch"
-		dch --release ""
+		dch --force-distribution --distribution="$OURSUITE" --release ""
 		"$PATCHDIR/$p"
 		# cross build foreign arch:any packages
 		if [ -n "$(env DEB_HOST_ARCH=$HOST_ARCH dh_listpackages -a)" ]; then