refactor/rename: emacs: set up autoloading of go-rename function
refactor/rename: emacs: set up autoloading of go-rename function

Add an ;;;###autoload magic comment, so that the go-rename command can be used
without need to explicitly (require 'go-rename) first.

Change-Id: Ibdf9886fe98c55e1d948469aac972b568649f910
Reviewed-on: https://go-review.googlesource.com/16327
Reviewed-by: Alan Donovan <7069e9552f9d110b0a0f326b96f22f63fb99dfc1@google.com>

emacsmirror/go-mode,dominikh/go-mode.el