openbsd-compat/getopt_long.c regress/modpipe.c] Remove getopt.c, add
portability code to getopt_long.c and switch over Makefile and the ugly
hack in modpipe.c. Fixes bz#1448.
[regress/integrity.sh regress/modpipe.c]
Add an option to modpipe that warns if the modification offset it not
reached in it's stream and turn it on for t-integrity. This should catch
cases where the session is not fuzzed for being too short (cf. my last
"oops" commit)
