Fix manpage synopsys.  Other doc fixes.  Improve an error message. Formatting cleanups. On second thought, keep the Sum-like class's .size method in bits Tighten and widen types as appropriate. Add sanity tests to parameter used for buffer length.
Fix manpage synopsys.  Other doc fixes.  Improve an error message.
Formatting cleanups.
On second thought, keep the Sum-like class's .size method in bits
Tighten and widen types as appropriate.
Add sanity tests to parameter used for buffer length.

skids/perl6sum