[LyX/master] Add missing break in switch

[Jean-Marc Lasgouttes]

commit 67907d2f12d71a0e6fb2d3cbe84bcf3199a4568a
Author: Jean-Marc Lasgouttes <lasgout...@lyx.org>
Date:   Sat Sep 12 22:29:25 2015 +0200

    Add missing break in switch
    
    Coverity issue 102058

diff --git a/src/Font.cpp b/src/Font.cpp
index 34c5c0b..f0814a3 100644
--- a/src/Font.cpp
+++ b/src/Font.cpp
@@ -707,6 +707,7 @@ void Font::validate(LaTeXFeatures & features) const
                case Color_teal:
                case Color_violet:
                        features.require("xcolor");
+                       break;
                default:
                        features.require("color");
                        LYXERR(Debug::LATEX, "Color enabled. Font: " << 
to_utf8(stateText(0)));