Fix tab issue in debian rules file

Author: eric1tran

debian/rules

@@ -17,6 +17,7 @@ override_dh_installinit:
 
 override_dh_systemd_start:
 	dh_systemd_start --no-stop-on-upgrade --no-restart-after-upgrade --name=dump978-fa.service
-        dh_systemd_start --no-stop-on-upgrade --no-restart-after-upgrade --name=skyaware978.service
+	dh_systemd_start --no-stop-on-upgrade --no-restart-after-upgrade --name=skyaware978.service
+
 %:
 	dh $@ --with=systemd