Bug 34091: Fix typo log-modules in help for cleanupdatabase.pl

Bug 34091: Fix typo log-modules in help for cleanupdatabase.pl

This parameter is actually --log-module.

Test plan :
Run misc/cronjobs/cleanup_database.pl -h
Confirm you see --log-module

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
(cherry picked from commit 289e06edea3284ddc5b61c57a4a62a657328c3f2)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
(cherry picked from commit 22d44fd2f24ea71de31f76fc2ed4f78fe725845e)
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>