Added credit to PragProg

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4173 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2003-07-26 12:53:09 +00:00 · 2003-07-26 12:53:09 +00:00 · 92aee059e8
commit 92aee059e8
parent b431230396
1 changed files with 3 additions and 1 deletions
--- a/lib/observer.rb
+++ b/lib/observer.rb
@ -1,5 +1,7 @@
 #
-# observer.rb implements the _Observer_ object-oriented design pattern.
+# observer.rb implements the _Observer_ object-oriented design pattern.  The
+# following documentation is copied, with modifications, from "Programming
+# Ruby", by Hunt and Thomas; http://www.rubycentral.com/book/lib_patterns.html.
 #
 # == About
 #