message: fix our ostream << hex << char
  Even when hex modifier is used, 'char' should be printed as characters,
  this is particularly relevant with 0.
  e.g. out << (char)0, should write a nul terminator, not "0".
diff: @@ -73,8 +73,8 @@ const char* ostream::getFormat(ostream::type t) const noexcept {
  switch (t) {
  case type::SHORT: return mShowHex ? "0x%hx" : "%hd";
  case type::USHORT: return mShowHex ? "0x%hx" : "%hu";
  - case type::CHAR: return mShowHex ? "0x%x" : "%c";
  - case type::UCHAR: return mShowHex ? "0x%x" : "%c";
  + case type::CHAR: return "%c";
  + case type::UCHAR: return "%c";
  case type::INT: return mShowHex ? "0x%x" : "%d";
  case type::UINT: return mShowHex ? "0x%x" : "%u";
  case type::LONG: return mShowHex ? "0x%lx" : "%ld";
  