Fix bug for low memory when file has odd number of bytes

[HotKeyIt]

No description provided.

[Lexikos]

What "bug for low memory"?

I see one case where the extra byte is needed, but I would not have described it that way. Merely having an odd number of bytes is not enough for the function to fail. Before I merge this, please elaborate.

[HotKeyIt]

Try running this code in debug mode:
FileDelete("C:\Temp\temptestfile.txt"),w:=FileOpen("C:\Temp\temptestfile.txt","w"),VarSetCapacity(var,1),w.RawWrite(&var,1),w.Close()
f:=FileRead("C:\Temp\temptestfile.txt","RAW")