[Specs] Minor fixes.

lib/cocoapods/specification/set.rb

@@ -88,7 +88,8 @@ module Pod
       #
       def specification
         unless @specification
-          sources = versions_by_source.select { |_, versions| versions.include?(required_version) }.keys
+          sources = []
+          versions_by_source.each{ |source, versions| sources << source if versions.include?(required_version) }
           source = sources.sort_by(&:name).first
           @specification = source.specification(name, required_version)
         end

spec/spec_helper/command.rb

@@ -10,17 +10,10 @@ module SpecHelper
     def run_command(*args)
       Dir.chdir(SpecHelper.temporary_directory) do
         Pod::UI.output = ''
-
         # TODO: remove this once all cocoapods has
         # been converted to use the UI.puts
         config_silent = config.silent?
         config.silent = false
-        # Very nasty behaviour where the relative increments are
-        # not reverted and lead to sections being collapsed and
-        # not being printed to the output.
-        Pod::UI.indentation_level = 0
-        Pod::UI.title_level = 0
-
         command(*args).run
         config.silent = config_silent
         Pod::UI.output

spec/spec_helper/pre_flight.rb

@@ -15,6 +15,12 @@ module Bacon
         c.skip_repo_update =  true
       end
       ::Pod::UI.output = ''
+      # Very nasty behaviour where the relative increments are
+      # not reverted and lead to sections being collapsed and
+      # not being printed to the output.
+      ::Pod::UI.indentation_level = 0
+      ::Pod::UI.title_level = 0
+
       old_run_requirement.bind(self).call(description, spec)
     end
   end