* doc/syntax/assignment.rdoc (Local Variables and Methods):  Fixed
  example showing caching of a method's results into a local variable.
  Added not about using an explicit receiver to call a method that
  matches a local variable.  Suggested by markov_twain on twitter.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38901 b2dd03c8-39d4-4d8f-98ff-823fe69b080e