talks: fix defer slide on Go for C++ developers

Change-Id: I798a358b5cc577cd18073d8a37dd2205e1b0616f
Reviewed-on: https://go-review.googlesource.com/12261
Reviewed-by: Andrew Gerrand <adg@golang.org>
diff --git a/2015/go4cpp.slide b/2015/go4cpp.slide
index 0742025..1af3d84 100644
--- a/2015/go4cpp.slide
+++ b/2015/go4cpp.slide
@@ -319,7 +319,7 @@
 
 - schedules a function call at the end of the current function
 
-- stacks all deferred calls - first in first out
+- stacks all deferred calls - last in first out
 
     var m sync.Mutex