[LyX/master] Shut up compiler warning

[Enrico Forestieri]

commit f476d9c85ad63353b978481fde59659b870758fe
Author: Enrico Forestieri <for...@lyx.org>
Date:   Tue Sep 27 21:32:40 2016 +0200

    Shut up compiler warning
---
 src/output_latex.cpp |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/output_latex.cpp b/src/output_latex.cpp
index c656ecf..0765949 100644
--- a/src/output_latex.cpp
+++ b/src/output_latex.cpp
@@ -982,8 +982,8 @@ void TeXOnePar(Buffer const & buf,
        switch (style.latextype) {
        case LATEX_ITEM_ENVIRONMENT:
        case LATEX_LIST_ENVIRONMENT:
-               if (nextpar && par_lang != nextpar_lang
-                   && nextpar->getDepth() == par.getDepth()
+               if ((nextpar && par_lang != nextpar_lang
+                            && nextpar->getDepth() == par.getDepth())
                    || (atSameLastLangSwitchDepth(state) && nextpar
                            && nextpar->getDepth() < par.getDepth()))
                        close_lang_switch = use_polyglossia;