userspace: remove vestigial '?' cases from top-level getopt(3) loops

getopt(3) returns '?' when it encounters a flag not present in the in
the optstring or if a flag is missing its option argument.

userspace: remove vestigial '?' cases from top-level getopt(3) loops

getopt(3) returns '?' when it encounters a flag not present in the in
the optstring or if a flag is missing its option argument. We can
handle this case with the "default" failure case with no loss of
legibility. Hence, remove all the redundant "case '?':" lines.

Prompted by dlg@. With help from dlg@ and millert@.

Link: https://marc.info/?l=openbsd-tech&m=167011979726449&w=2

ok naddy@ millert@ dlg@

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o clean up a little whitespace and formatting
o move some declarations out of hexdump.h
o mark some declarations as __dead or static

from Michal Mazurek, with input from and ok tb@

sync -x, default and example in man page as they should be;
ok jmc@ millert@

rcsid[] and sccsid[] and copyright[] are essentially unmaintained (and
unmaintainable). these days, people use source. these id's do not provide
any benefit, and do hurt the small install media
(th

rcsid[] and sccsid[] and copyright[] are essentially unmaintained (and
unmaintainable). these days, people use source. these id's do not provide
any benefit, and do hurt the small install media
(the 33,000 line diff is essentially mechanical)
ok with the idea millert, ok dms

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sort options and sync usage();

Accept a leading 0x for the -n length parameter.

Correctly check for out-of-bounds values for -s skip parameter, and use
strtoll to parse it instead of strtol since this is an off_t value.

de-register and ansification; millert ok

Remove the advertising clause in the UCB license which Berkeley
rescinded 22 July 1999. Proofed by myself and Theo.

Changes come from NetBSD, Lite-2 and me. ok deraadt
od(1):
- Enable support for printing 8-byte integers.
- Added -C option for hexadecimal+ASCII display.
- Fix od so it displays short files contain

Changes come from NetBSD, Lite-2 and me. ok deraadt
od(1):
- Enable support for printing 8-byte integers.
- Added -C option for hexadecimal+ASCII display.
- Fix od so it displays short files containing nulls.
- POSIXification: The C, S, I and L modifiers now behave correctly,
specifying output in units of a char, short, int and long (as defined by
the host system) respectively. Support -N, equivalent to hexdump's
-n (format only COUNT bytes of input). Add -j option which does the
same thing as -s in hexdump (skipping some of the input).
hexdump(1):
- POSIX.2 doesn't specify hexdump so it can't be compatible with it...
- add missing trailing \n in usage() printf

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replace fprintf(stderr)/exit w/ err/warn

first pass at a -Wall cleanup

getopt(3) returns -1 when out of args, not EOF, whee!

rcsid

initial import of NetBSD tree