[LyX/master] Add missing initialization

[Jean-Marc Lasgouttes]

commit 1f10969bb5c5f36017bf5ba8671381b09945cf57
Author: Jean-Marc Lasgouttes <lasgout...@lyx.org>
Date:   Wed Mar 1 17:25:03 2017 +0100

    Add missing initialization
    
    Spotted by coverity
---
 src/frontends/qt4/GuiSymbols.cpp |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/frontends/qt4/GuiSymbols.cpp b/src/frontends/qt4/GuiSymbols.cpp
index e2c0f04..f327bb5 100644
--- a/src/frontends/qt4/GuiSymbols.cpp
+++ b/src/frontends/qt4/GuiSymbols.cpp
@@ -205,7 +205,7 @@ class GuiSymbols::Model : public QAbstractListModel
 {
 public:
        Model(GuiSymbols * parent)
-               : QAbstractListModel(parent)
+               : QAbstractListModel(parent), encoding_(0)
        {}
 
        QModelIndex index(int row, int column, QModelIndex const &) const