* observer.rb: raise NoMethodError instead of NameError. [ruby-dev:18788]

* ostruct.rb: ditto.  fix a bug in inspect which called String#+ with
  Symbol.  [ruby-dev:18788]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3044 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/observer.rb b/lib/observer.rb
index e1b249e885..161297e70c 100644
--- a/lib/observer.rb
+++ b/lib/observer.rb
@@ -6,7 +6,7 @@ module Observable
   def add_observer(observer)
     @observer_peers = [] unless defined? @observer_peers
     unless observer.respond_to? :update
-      raise NameError, "observer needs to respond to `update'" 
+      raise NoMethodError, "observer needs to respond to `update'" 
     end
     @observer_peers.push observer
   end