statically compiling in the sudoers plugin but still allow other
plugins to be loaded. The new --enable-static-sudoers configure
option will cause the sudoers plugin to be compiled statically into
the sudo binary. This does not prevent other plugins from being
loaded as per sudo.conf.
MAXHOSTNAMELEN and the MIN/MAX macros. We now use PATH_MAX and
HOST_NAME_MAX throughout without falling back on MAXPATHLEN or
MAXHOSTNAMELEN and define our own MIN/MAX macros as needed.