Fixed: revision is ignored in MercurialAdapter#cat.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@1288 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/redmine/scm/adapters/mercurial_adapter.rb

@@ -143,7 +143,9 @@ module Redmine
         end
         
         def cat(path, identifier=nil)
-          cmd = "#{HG_BIN} -R #{target('')} cat #{target(path)}"
+          cmd = "#{HG_BIN} -R #{target('')} cat"
+          cmd << " -r #{identifier.to_i}" if identifier
+          cmd << " #{target(path)}"
           cat = nil
           shellout(cmd) do |io|
             io.binmode