Why am I getting a "RDoc failure in lib/httpclient.rb" while trying to install or upgrade the rhc client tools?

Code: 
KB-E1079
Issue: 

When running "sudo gem install/update rhc" to install/upgrade the rhc client, the following error is thrown:

11:58:01:~::sudo gem update rhc
Password: xxxxxx
Updating installed gems
Updating rhc
===========================================================================
 
If this is your first time installing the RHC tools, please run 'rhc setup'
 
===========================================================================
Successfully installed httpclient-2.3.2
Successfully installed rhc-1.3.8
Gems updated: httpclient, rhc
Installing ri documentation for httpclient-2.3.2...
 
 
RDoc failure in lib/httpclient.rb at or around line 405 column 16
 
Before reporting this, could you check that the file
you're documenting compiles cleanly--RDoc is not a
full Ruby parser, and gets confused easily if fed
invalid programs.
 
The internal error was:
 
ERROR:  While executing gem ... (NoMethodError)
   undefined method `name' for #<RubyToken::TkLPAREN:0x1041fa8d8>
Resolution: 

Although the error is thrown, rhc client tools should successfully get installed/upgraded, but when in doubt, add the --no-rdoc and --no-ri flag to you install or update command like so:

sudo gem install rhc --no-rdoc --no-ri
sudo gem update rhc --no-rdoc --no-ri