anchor.diff:                                          error     -> false
                                       end;
   parse_opt({"strbin", []})        -> {true, strings_as_binaries};
  +parse_opt({"il", []})            -> {true, include_as_lib};
   parse_opt({"h", _})              -> {true, help};
   parse_opt({"-help", _})          -> {true, help};
   parse_opt({"V", _})              -> {true, version};
  
positive.code: %%   <dt>`-strbin'</dt>
  %%   <dd>Specify that decoded strings should be returend as binaries,
  %%       instead of as strings (lists).</dd>
  %%   <dt>`--help' or `-h'</dt>
  %%   <dd>Show help.</dd>
  %%   <dt>`--version' or `-V'</dt>
  
negative.code:       "    -strbin~n"
        "          Specify that decoded strings should be returend as binaries,~n"
        "          instead of as strings (lists).~n"
        "    -il~n"
        "          Generate code that includes gpb.hrl using -include_lib~n"
        "          instad of -include, which is the default.~n"
        "    --help  -h~n"
        "          Show help~n"
        "    --version  -V~n"
  