Leading or trailing white space characters in file names

[Travis Cobbs]

Many file types have a "magic number" at the beginning so programs can determine whether or not a file is of a given type without having to rely on the file's extension. For example, the first four characters of a GIF file are GIF8 (followed by either 7 or 9a, depending on the GIF version). Given LDraw's original generic .dat extension, having a magic number at the beginning of LDraw files could be useful. And since the first line is supposed to be a comment with the file's description (and is required to be that for parts), disallowing white space before the 0 would give something of a magic number (although not a very unique one). It's not perfect, but I think it's better than nothing.