erp5.zeo: Move variable-length crontab command to script.

When there are many ZODBs, this command can exceed crond's maximum 1024
bytes limit.

stack/erp5/buildout.cfg

@@ -305,7 +305,7 @@ md5sum = 7735d535aa34dfdc18a776b80bc0ca3d
 [template-zeo]
 < = download-base
 filename = instance-zeo.cfg.in
-md5sum = 6b99d2712aff3a8a717400a557dc5191
+md5sum = 7bbb690cb2ea38cd2aa84c8a79c50399
 
 [template-zope]
 < = download-base

stack/erp5/instance-zeo.cfg.in

@@ -178,7 +178,12 @@ recipe = slapos.cookbook:cron.d
 cron-entries = ${cron:cron-entries}
 name = purge-repozo-fsindex
 time = ${cron-entry-tidstorage-backup:time}
-command = {{ parameter_dict['findutils-location'] }}/bin/find {% for backup_directory in backup_directory_list %}'{{ backup_directory.replace("\\", "\\\\").replace("'", "\\'") }}' {% endfor %}-name "????-??-??-??-??-??.index" -daystart -mtime +2 -delete
+command = ${cron-script-purge-repozo-fsindex:wrapper-path}
+
+[cron-script-purge-repozo-fsindex]
+recipe = slapos.cookbook:wrapper
+command-line = "{{ parameter_dict['findutils-location'] }}/bin/find" {% for backup_directory in backup_directory_list %}'{{ backup_directory.replace("\\", "\\\\").replace("'", "\\'") }}' {% endfor %}-name "????-??-??-??-??-??.index" -daystart -mtime +2 -delete
+wrapper-path = ${directory:bin}/cron-purge-repozo-fsindex
 
 {% endif -%}
 [{{ section("logrotate-tidstorage") }}]
@@ -210,6 +215,7 @@ tidstorage-port = ${tidstorage:port}
 
 [directory]
 recipe = slapos.cookbook:mkdirectory
+bin = ${buildout:directory}/bin
 etc = ${buildout:directory}/etc
 services = ${:etc}/run
 promises = ${:etc}/promise