Fix typo in recipe.

Use two dollars to pass to instance recipe.

stack/lamp/buildout.cfg

@@ -68,7 +68,7 @@ mode = 0644
 recipe = slapos.recipe.template
 url = ${:_profile_base_location_}/instance-apache-php.cfg
 output = ${buildout:directory}/template-apache-php.cfg
-md5sum = 7214e805bba93a64c069af6dbad1b7a1
+md5sum = b83ff96dfef872cfe686e22227bf43b9
 mode = 0644
 
 [template-apache-backup]

stack/lamp/instance-apache-php.cfg

@@ -21,7 +21,7 @@ offline = true
 
 [url]
 recipe = slapos.cookbook:publishurl
-url = ${request-frontend:connection-site_url}
+url = $${request-frontend:connection-site_url}
 
 [promise]
 recipe = slapos.cookbook:check_port_listening
@@ -117,7 +117,7 @@ name = Frontend
 # XXX We have hardcoded SR URL here.
 software-url = http://git.erp5.org/gitweb/slapos.git/blob_plain/refs/tags/slapos-0.74:/software/apache-frontend/software.cfg
 slave = true
-  config = url
+config = url
 config-url = http://[$${apache-php:ip}]:$${apache-php:port}/
 return = site_url