Update libdwarf to version 0.11.1 / rev 37 via SR 1265497
    
    https://build.opensuse.org/request/show/1265497
    by user dirkmueller + anag+factory
    - update to 0.11.1:
      * Updated document date to today.
      * Each file has 1 to 3 trivial casts added and all
        involve things whose known range ensures
        the change is ok (boolean, address-size, and other known
        things)..
      * Removing trailing whitespace and fixing a couple
        indent mistakes.
      * Now checks and reports on all DIE references, meaning
        the DWARF reference class.
      * Now uses a macro for 0x%08llx clarifying printf on
        Dwarf_Unsigned.
      * Also removes an accidental trailing space in printed
        output.
      * In one place in code added yesterday an explicit dealloc
        of a Dwarf_Error was omitted. Found by the usual
        export NLIZE=y export SUPPRESSDEALLOCTREE=y
        regressiontest.
      * The code refactoed to print attributes:
        DW_AT_specification:
        DW_AT_abst