Make sure that each va_start has one and only one matching va_end,
especially in error cases.
If the va_list is used multiple times, do multiple va_starts/va_ends.
If a function gets va_list as argument, don't let it use va_end (since
it's the callers responsibility).
Improved by comments from enami and christos -- thanks!
Heimdal/krb4/KAME changes already fed back, rest to follow.
Inspired by, but not not based on, OpenBSD.
- remove fstab walking code
- add missing prototypes
- add missing argument in dir.c near "Truncate", where delete() was being
called with fewer args. I think the missing argument should be a zero,
but Wolfgang should check...
jmmv