message: Fix display of 64-bit integers in buffer viewer
diff: @@ -1133,6 +1133,18 @@ private:
  else
  ret = Formatter::Format(i);
  }
  + else if(vt == QMetaType::ULongLong)
  + {
  + ret = Formatter::Format(v.toULongLong(), el.hex);
  + }
  + else if(vt == QMetaType::LongLong)
  + {
  + int64_t i = v.toLongLong();
  + if(i >= 0)
  + ret = lit(" ") + Formatter::Format(i);
  + else
  + ret = Formatter::Format(i);
  + }
  else
  {
  ret = v.toString();
  