Correct wsgi_daemon_process_options key

'owner' is not a valid option for the WSGIDaemonProcess directive. The
correct option is 'user' [1]. Trying to set 'owner' causes the service
to be unable to start. This patch corrects that option name.

[1] https://code.google.com/p/modwsgi/wiki/ConfigurationDirectives#WSGIDaemonProcess

Change-Id: I907fbcb48db823ea8f5caca4496efaaa456ef69c

manifests/wsgi/apache.pp

@@ -170,7 +170,7 @@ define openstacklib::wsgi::apache (
   }
 
   $wsgi_daemon_process_options = {
-    owner     => $user,
+    user      => $user,
     group     => $group,
     processes => $workers,
     threads   => $threads,

spec/defines/openstacklib_wsgi_apache_spec.rb

@@ -75,6 +75,12 @@ describe 'openstacklib::wsgi::apache' do
         'wsgi_daemon_process'         => 'keystone_wsgi',
         'wsgi_process_group'          => 'keystone_wsgi',
         'wsgi_script_aliases'         => { '/' => "/var/www/cgi-bin/keystone/main" },
+        'wsgi_daemon_process_options' => {
+          'user'      => 'keystone',
+          'group'     => 'keystone',
+          'processes' => 1,
+          'threads'   => global_facts[:processorcount],
+        },
         'require'                     => 'File[keystone_wsgi]'
       )}
       it { is_expected.to contain_file("#{platform_parameters[:httpd_ports_file]}") }