[LyX/master] Initialize class member to please coverity

[Jean-Marc Lasgouttes]

commit 9251a360a9f3faa6466a85899ba0c0856522b350
Author: Jean-Marc Lasgouttes <lasgout...@lyx.org>
Date:   Wed Mar 1 16:31:00 2017 +0100

    Initialize class member to please coverity
---
 src/mathed/MathMacro.cpp |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/mathed/MathMacro.cpp b/src/mathed/MathMacro.cpp
index 8b86dc6..e71b288 100644
--- a/src/mathed/MathMacro.cpp
+++ b/src/mathed/MathMacro.cpp
@@ -199,7 +199,7 @@ public:
                  expanded_(buf), definition_(buf), attachedArgsNum_(0),
                  optionals_(0), nextFoldMode_(true), macroBackup_(buf),
                  macro_(0), needsUpdate_(false), isUpdating_(false),
-                 appetite_(9)
+                 appetite_(9), nesting_(0)
        {
        }
        /// Update the pointers to our owner of all expanded macros.