pkt-line parsing/formatting routines are 8-bit clean.
A non-binary line SHOULD BE terminated by an LF, which if present
-MUST be included in the total length.
+MUST be included in the total length. Receivers MUST treat pkt-lines
+with non-binary data the same whether or not they contain the trailing
+LF (stripping the LF if present, and not complaining when it is
+missing).
- The maximum length of a pkt-line's data component is 65520 bytes.
- Implementations MUST NOT send pkt-line whose length exceeds 65524
- (65520 bytes of payload + 4 bytes of length data).
+ The maximum length of a pkt-line's data component is 65516 bytes.
+ Implementations MUST NOT send pkt-line whose length exceeds 65520
+ (65516 bytes of payload + 4 bytes of length data).
Implementations SHOULD NOT send an empty pkt-line ("0004").