[LyX/master] Initialize pointer class member

[Jean-Marc Lasgouttes]

commit f52325f051c62774f3c74460084398b759f2e9b9
Author: Jean-Marc Lasgouttes <lasgout...@lyx.org>
Date:   Wed Mar 1 16:34:01 2017 +0100

    Initialize pointer class member
    
    Found by coverity.
---
 src/ErrorList.cpp |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/ErrorList.cpp b/src/ErrorList.cpp
index 9b6fe24..1613ce7 100644
--- a/src/ErrorList.cpp
+++ b/src/ErrorList.cpp
@@ -32,7 +32,7 @@ ErrorItem::ErrorItem(docstring const & error_, docstring 
const & description_,
 
 
 ErrorItem::ErrorItem()
-       : start(TexRow::text_none), end(TexRow::text_none)
+       : start(TexRow::text_none), end(TexRow::text_none), buffer(0)
 {}