vim-patch:7.4.477

Problem:    When using ":%diffput" and the other file is empty an extra empty
	    line remains.
Solution:   Set the buf_empty flag.

https://code.google.com/p/vim/source/detail?r=v7-4-477

src/nvim/version.c

@@ -261,7 +261,7 @@ static int included_patches[] = {
   //480 NA
   //479 NA
   478,
-  //477,
+  477,
   //476 NA
   //475 NA
   //474,