COOK-4357, fix convergence for sasl_auth

Signed-off-by: Sean OMeara <someara@opscode.com>

.kitchen.yml

@@ -43,5 +43,9 @@ suites:
   - recipe[postfix::sasl_auth]
   attributes:
     postfix:
-      main :
+      main:
+        relayhost: "localhost"
         smtp_sasl_auth_enable: "yes"
+      sasl:
+        smtp_sasl_user_name: "kitchenuser"
+        smtp_sasl_passwd: "not-a-real-thing"

recipes/sasl_auth.rb

@@ -44,16 +44,11 @@ end
 
 execute 'postmap-sasl_passwd' do
   command "postmap #{node['postfix']['sasl_password_file']}"
+  environment 'PATH' => "#{ENV['PATH']}:/opt/omni/bin:/opt/omni/sbin" if platform_family?('omnios')
   action :nothing
 end
 
 template node['postfix']['sasl_password_file'] do
-  command "postmap #{node['postfix']['conf_dir']}/sasl_passwd"
-  environment :PATH => "#{ENV['PATH']}:/opt/omni/bin:/opt/omni/sbin" if platform_family?('omnios')
-  action :nothing
-end
-
-template "#{node['postfix']['conf_dir']}/sasl_passwd" do
   source 'sasl_passwd.erb'
   owner 'root'
   group 'root'