Log Message:
Update to 2.11.8:
    Clarify that the internal hash as well as the hash builtin
    function used by calc, while based on the Fowler/Noll/Vo
    hash is NOT an FNV hash.

    Made slight performance improvements to calc by an optimization of how
    calc's internal hash is computed.  The "make chk" regression test
    runs about 1.5% faster (when compiled with -O3 on an AMD Athlon)
    NO_HASH_CPU_OPTIMIZATION is not defined.  Calc's internal hash values
    have not changed.  By default, NO_HASH_CPU_OPTIMIZATION is NOT defined
    and the slightly faster expression is used.

    A slight modification of what was known as the "calc new stardard"
    configuration (calc -n or config("all", "newstd")) is \ 
now the default
    calc configuration.  The flag:

        calc -O

    was added to get the old classic calc configuration.  The flag command
    line flag, -n, now does nothing.  Use of -n is deprecated and may go
    away / be used for something else in the future.

    The following table gives the summary of these changes:

             pre v2.11.8                     v2.11.8
             default         pre v2.11.8     -O & oldstd      v2.11.8
             and oldstd      -n & newstd     classic cfg      default
             --------------------------------------------------------
    epsilon     1e-20           1e-10           1e-20           1e-20
    quo         2               2               2               2
    outround    2               24              2               24
    leadzero    0               1               0               1
    fullzero    0               1               0               0
    prompt      >               ;               >               ;
    more        >>              ;;              >>              ;;

    With the exception of epsilon being 1e-20, and fullzero being unset,
    the new default calc config is like it was (pre-2.11.8) with calc -n /
    config("all", "newstd").

    The new default config is the old classic config with outround being
    24, leadzero being set, and the prompts being ;'s.