puppet: Fix Icinga Web 2's logging configuration

refs #6842

.puppet/profiles/icingaweb2_dev/manifests/init.pp

@@ -46,7 +46,8 @@ class icingaweb2_dev (
 
   User <| alias == apache |> { groups +> 'icingacmd' }
 
-  file { "${log}":
+  $log_dir = inline_template('<%= File.dirname(@log) %>')
+  file { $log_dir:
     ensure  => directory,
     owner   => 'root',
     group   => 'icingaweb',

.puppet/profiles/icingaweb2_dev/templates/config.ini.erb

@@ -1,6 +1,6 @@
 [logging]
 log   = "file"
-file  = "/var/log/<%= @log %>/<%= @log %>.log"
+file  = "<%= @log %>"
 level = DEBUG
 
 [preferences]