Fix typo.

@alain.takoudjou , @rafael  this fixes broken webrunner tests.

Passing one: https://nexedi.erp5.net/test_result_module/20180126-5FF058E7/2

/reviewed-on !277

software/slaprunner/buildout.hash.cfg

@@ -19,7 +19,7 @@ md5sum = 713db528880282d568278f09458d2aab
 
 [template-runner]
 filename = instance-runner.cfg
-md5sum = ab366caca157bfa9d61307939038dab3
+md5sum = 8b1caca52ab1307343ebada59f5a6c66
 
 [template-runner-import-script]
 filename = template/runner-import.sh.jinja2

software/slaprunner/instance-runner.cfg

@@ -353,7 +353,7 @@ context =
 [logrotate-entry-nginx]
 <= logrotate-entry-base
 name = nginx
-log = $${basedirectory:log}/nginx.access.log $${basedirectory:log}/nginx.error.log
+log = $${directory:log}/nginx.access.log $${directory:log}/nginx.error.log
 post = kill -SIGUSR1 $(cat $${buildout:directory}/var/run/nginx.pid)
 
 [httpd-parameters]
@@ -399,7 +399,7 @@ wait-for-files =
 [logrotate-entry-apache-httpd]
 <= logrotate-entry-base
 name = apache
-log = $${basedirectory:log}/httpd-access.log $${basedirectory:log}/httpd-error.log
+log = $${directory:log}/httpd-access.log $${directory:log}/httpd-error.log
 post = test ! -s $${buildout:directory}/var/run/httpd.pid || $${buildout:directory}/bin/slapos-kill --pidfile $${buildout:directory}/var/run/httpd.pid -s USR1
 
 [httpd-graceful-wrapper]
@@ -795,7 +795,7 @@ wrapper-path = $${directory:services}/supervisord
 [logrotate-entry-supervisord]
 <= logrotate-entry-base
 name = supervisord
-log = $${basedirectory:log}/slapproxy.log $${basedirectory:log}/supervisord.log $${basedirectory:log}/supervisord-errors.log
+log = $${directory:log}/slapproxy.log $${directory:log}/supervisord.log $${directory:log}/supervisord-errors.log
 post = kill -SIGUSR2 $(cat $${buildout:directory}/var/run/supervisord.pid)
 
 [supervisord-promise]