vim-patch:7.4.525 #1988

Problem:    map() leaks memory when there is an error in the expression.
Solution:   Call clear_tv(). (Christian Brabandt)

https://code.google.com/p/vim/source/detail?r=v7-4-525

src/nvim/version.c

@@ -259,7 +259,7 @@ static int included_patches[] = {
   528,
   527,
   //526,
-  //525,
+  525,
   //524,
   //523 NA
   //522 NA