s4/scripting/demodirsync: fix syntax error

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
22 jobs for douglas-python-misc in 292 minutes and 52 seconds (queued for 1 second)
Status Name Job ID Coverage
  Build
passed build_ctdb #112441894
docker shared

00:35:56

passed build_others #112441899
docker shared

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passed build_samba #112441902
docker private

04:52:49

passed build_samba_ad_dc #112441909
docker private

01:27:17

passed build_samba_ad_dc_2 #112441889
docker shared

00:36:49

passed build_samba_ad_dc_2_py3 #112441890
shared docker

00:19:41

passed build_samba_ad_dc_py3 #112441911
docker private

00:19:06

passed build_samba_buildpy3_only #112441900
docker shared

00:13:26

passed build_samba_ctdb #112441897
docker shared

00:18:45

passed build_samba_fileserver #112441907
docker private

00:20:27

passed build_samba_libs #112441891
docker shared

00:20:27

passed build_samba_libs_py3 #112441892
docker shared

00:34:51

passed build_samba_none_env #112441884
docker shared

00:47:14

passed build_samba_nopython #112441885
docker shared

00:26:28

passed build_samba_nt4 #112441905
docker private

00:39:18

passed build_samba_nt4_py3 #112441906
docker private

00:12:42

passed build_samba_o3 #112441888
docker shared

00:32:14

passed build_samba_purepy3-none_env #112441901
docker shared

01:10:21

passed build_samba_py3 #112441903
docker private

01:24:46

passed build_samba_static #112441893
docker shared

00:45:20

passed build_samba_systemkrb5 #112441886
docker shared

00:10:35

passed build_samba_xc #112441887
docker shared

00:06:31