While here, use a better WRKSRC and rebase patches.
* Implement options: expandtab gtagsmode matchchars * Fix tty garbling when quitting from recovery mode. * Don't coredump during autoindent edge case. * Set internal version to "nvi-1.81.6nb4 (2009-08-07)" * Crank pkgrevision to nb4.
Changes since 1.81.5 * various compilation fixes * support for newer DBs * tcl support compiles again
No new functionality.