Noteworthy changes include:
* Use getopt(3).
* Fix overflows in -b and -w options.
* Use strlcpy(3) and snprintf(3) in favor of strcpy(3) and
sprintf(3), respectively. Also check return values of the former
two.
* Fix lots of other gratuitous differences with OpenBSD.
Obtained from: OpenBSD
appropriate bounds-checking and typecasts based on our knowledge of
the desired conversion format specifier.
Simplify diagnostics and take care to print the correct conversion
format specifier when %l is involved.
aren't allowed and the right casts can be used for printf() statements.
Document the conversion specifier limitations and the fact that
arithmetic overflow causes a fatal error.
PR: 12611
Reported by: Frode Vatvedt Fjeld <frodef@acm.org>
Reviewed by: bde
