Format a raw string in to a byte buffer specifying the size of the length
field. This is because strings can be limited to 255 bytes for names.
String fields can be longer than 255 characters.

Declaration Syntax

Parameters
- buf (array<
Byte
>[]()[])
- The byte buffer to have the string formatted in
- offset (Int32)
- The offset to begin formatting in the buffer
- v (String)
- The string to be formatted
- len_size (Int32)
- This specifies the size of the length field to be formatted
and should be 1 or 4

Return Value
The updated offset after formatting (points to an unused offset)
Assembly:
lbmcssdm (Module: lbmcssdm) Version: 6.7.1.0