[LyX/master] Fix #10871 compiler warnings.

[Richard Heck]

commit 4c093a50c2aaebad1459991b90b625a8c00a69e8
Author: Richard Heck <rgh...@lyx.org>
Date:   Sat Dec 16 09:58:52 2017 -0500

    Fix #10871 compiler warnings.
---
 src/frontends/qt4/GuiExternal.cpp |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/frontends/qt4/GuiExternal.cpp 
b/src/frontends/qt4/GuiExternal.cpp
index f994aaf..8215f07 100644
--- a/src/frontends/qt4/GuiExternal.cpp
+++ b/src/frontends/qt4/GuiExternal.cpp
@@ -626,9 +626,9 @@ void GuiExternal::applyView()
 }
 
 
-bool GuiExternal::initialiseParams(string const & data)
+bool GuiExternal::initialiseParams(string const & sdata)
 {
-       InsetExternal::string2params(data, buffer(), params_);
+       InsetExternal::string2params(sdata, buffer(), params_);
        return true;
 }