merges r20629 from trunk into ruby_1_9_1.

* lib/pathname.rb (Pathname#=~): undefed.  at asakusa.rb.
  [ruby-core:19690]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@20700 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/pathname.rb b/lib/pathname.rb
index 1bc0063bb0..86f0f54800 100644
--- a/lib/pathname.rb
+++ b/lib/pathname.rb
@@ -1063,6 +1063,10 @@ class Pathname    # * mixed *
   end
 end
 
+class Pathname
+  undef =~
+end
+
 module Kernel
   # create a pathname object.
   #