net-eth: fix ugly typo

features.in/net-eth/rootfs/image-scripts.d/50-net-eth

@@ -40,7 +40,7 @@ write_iface() {
 		echo "NM_CONTROLLED=$NMCTL"
 		echo "DISABLED=$NMCTL"
 		echo "#USE_IFPLUGD=yes"
-		[ -z "$append"] || echo "$append"
+		[ -z "$append" ] || echo "$append"
 	} > "$dir/options"
 }