Rename conflict variable with the following block
Rename conflict variable with the following block

Why
----

This commit removes the following interpreter warning.

* warning: shadowing outer local variable

Reproduction
------------

* ruby 1.9.3p392 (2013-02-22 revision 39386)
* `$VERBOSE = true` on test

manastech/ruby-openid,manastech/ruby-openid,manastech/ruby-openid,manastech/ruby-openid,manastech/ruby-openid