Comment 3 for bug 1158604

StacktraceTop:
 malloc_consolidate (av=av@entry=0x7fd514000020) at malloc.c:4065
 _int_free (av=0x7fd514000020, p=0x7fd514004380, have_lock=0) at malloc.c:3973
 _M_dispose (__a=..., this=0x7fd514004390) at /usr/include/c++/4.7/bits/basic_string.h:246
 ~basic_string (this=0x7fd51f514a40, __in_chrg=<optimized out>) at /usr/include/c++/4.7/bits/basic_string.h:536
 get_extensions<libproxy::config_extension> (this=0x190cdd8) at /build/buildd/libproxy-0.4.11/libmodman/module_manager.hpp:47