Comment 2 for bug 834067

StacktraceTop:
 size (this=<optimized out>) at /usr/include/c++/4.6/bits/basic_string.h:711
 compare (__str=<optimized out>, this=<optimized out>) at /usr/include/c++/4.6/bits/basic_string.h:2175
 operator< <char, std::char_traits<char>, std::allocator<char> > (__rhs=<optimized out>, __lhs=<optimized out>) at /usr/include/c++/4.6/bits/basic_string.h:2512
 operator() (__y=<optimized out>, __x=<optimized out>, this=<optimized out>) at /usr/include/c++/4.6/bits/stl_function.h:236
 _M_lower_bound (__y=<optimized out>, __k=<optimized out>, __x=<optimized out>, this=<optimized out>) at /usr/include/c++/4.6/bits/stl_tree.h:1080