erp5-cluster: fix zeo exclude export path for resiliency

So far the path is hardcoded, but setting full path is not compatible
with resilient stack so far

stack/erp5/buildout.cfg

@@ -301,7 +301,7 @@ md5sum = 535e8089acf808efe1d4e55328404ce3
 [template-zeo]
 < = download-base
 filename = instance-zeo.cfg.in
-md5sum = 9670cf63099e2c520017a23defff51a4
+md5sum = 5e2f78cb0618dc26889a5982c2fc91d9
 
 [template-zope]
 < = download-base

stack/erp5/instance-zeo.cfg.in

@@ -124,7 +124,7 @@ tidstorage-port =
 [{{ section("resiliency-exclude-file") }}]
 # Generate rdiff exclude file
 recipe = collective.recipe.template
-input = inline: {{ default_zodb_path }}/**
+input = inline: srv/zodb/**
 output = ${directory:srv}/exporter.exclude
 
 [{{ section("resiliency-after-import-script") }}]