function that just sets error and returns -1. This adds a
"noexec_file" option to load the filename as well as a "noexec" flag
to enable it unconditionally. There is also a NOEXEC tag that can
be attached to specific commands and an EXEC tag to disable it.
enum type. Currently there is only a single tuple enum but in the
future we may have one tuple enum per T_TUPLE entry in def_data.in.
Currently listpw, verifypw and lecture are tuples. This avoids the
need to have two entries (one ival, one str) for pwflags and syslog
values.
lecture is now a tuple with the following values: never, once, always
We no longer use both an int and string entry for syslog facilities
and priorities. Instead, there are logfac2str() and logpri2str()
functions that get used when we need to print the string values.
call initgroups() if the target user was root. Now it always calls
initgroups() unless the -P command line option or the "preserve_groups"
sudoers option is set. Idea from TJ Saunders.
