- Don't bother emitting "#define NFOO 0" for defflag foo (whether or
not "options FOO" was given); it's really useful as is.
Until I recently started converting stuff from defopt to defflag,
nothing used defflag, and because defopt doesn't provide NFOO for FOO,
the NFOO behaviour shouldn't be missed. The NFOO stuff also added
a lot of #define namespace pollution that we'd rather avoid.
- Remove a couple of unused vars
0e59a7f124