Comment 2 for bug 982196

StacktraceTop:
 std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(std::string const&) () from /tmp/tmp5YBW6P/usr/lib/i386-linux-gnu/libstdc++.so.6
 operator() (this=<optimized out>) at /usr/include/Nux-2.0/NuxCore/Property-inl.h:87
 operator!=<nux::Property, std::basic_string<char>, std::basic_string<char>, std::basic_string<char> > (rhs=<optimized out>, lhs=<optimized out>) at /usr/include/Nux-2.0/NuxCore/PropertyOperators.h:88
 operator() (data=<optimized out>, this=<optimized out>) at /build/buildd/unity-5.10.0/plugins/unityshell/src/HudLauncherIcon.cpp:61
 operator()<_GVariant* const&> (this=<optimized out>, _A_arg1=<optimized out>) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:84