Fix #3186 - require function set relationship only on the last class

Due to the fact that resource.set_parameter is overwriting the previous
set_parameters, we were losing the previous relationships we set there,
either in a previous call of require or in the same call.

Signed-off-by: Brice Figureau <brice-puppet@daysofwonder.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/puppet/parser/functions/require.rb b/lib/puppet/parser/functions/require.rb
index 3e7961933..f634f9fbd 100644
--- a/lib/puppet/parser/functions/require.rb
+++ b/lib/puppet/parser/functions/require.rb
@@ -50,7 +50,7 @@ fail if used with earlier clients.
             # but that is considered a containment edge, not a dependency
             # edge, so it usually gets lost on the client.
             ref = Puppet::Parser::Resource::Reference.new(:type => :class, :title => klass)
-            resource.set_parameter(:require, ref)
+            resource.set_parameter(:require, [resource[:require]].flatten.compact << ref)
         end
     end
 end