config.mk: Add -DNDEBUG

Add table-specific exit status codes; table.c: Sort functions, add 
more assert calls

table.1.in: Workaround buggy implementations of mdoc in mandb

AUTHORS,table.1.in: Update email address

utf8.c: Synchronize formatting changes from slweb

lib/mkpack: Synchronize changes from sled

table.c(main): Bugfix: test for errno after the call to isatty(3)

test/file.sh: Convert to OpenBSD sed

table.1.in: Sort symbol set literals; add note about other values

table.c: Use assert(3); make setter functions use data structures; 
(error,warning): Null-terminate buf; (startswith): Rewrite; (main): 
Check alignment string for validity; replace redundant snprintf with 
direct assignment

utf8.[ch]: *_char_* -> *_rune_*; (u32_to_u8,u32_strlen): Add max

defs.h: Move macros to defs.h; use perror(3)

Tidy up tests

Makefile: Make pack not depend on all

Bugfix: Clear errno to prevent "table: sysconf: Not a tty"

lib/mkpack: Use either got or git, or error out

lib/makedate: Convert month name to appease mandoc -Tlint; manpage 
fixes for mandb

table.1.in: Use Ns to help mandb flavor of man format mdoc properly

lib/mkpack: Use got instead of git

lib/makeversion: Synchronize to sled's lib/makeversion