- Update to tcsh ifinal version V6.18.00
* remove unused variables.
* Make gethost use definitions for x __x__ and __x automatically.
* More utmp fixes

- Update to tcsh minor version V6.17.10
* Add more FreeBSD/NetBSD machines
* Add portability wrapper for gencat
* Fix warning for write in SYSMALLOC systems.
* revert gencat handling to pre-cygwin fixes (without the env settings)
* remove stray endutent()
* Remove - from gencat
* Provide support for malloc_usable_size() so that linux works again
without SYSMALLOC
* Add support for FreeBSD's utmpx.
* Fix debian bug #645238: tcsh segfaults when prompt includes %j and
there are more than 10 jobs.
* PR/155: Default $anyerror to set for backward compatibility
* PR/149: Don't print -1 in %j (Vojtech Vitek)
* handle -- on chdir commands as the end of options processing so that
they can process a directory like -x without resorting to ./-x
(Andrew Stevenson)
* Handle write(2) returning ENOENT from SoFS, thanks ++HAL (Robert Byrnes)
* PR/38: Null check for jobs (Kurt Miller)
* Fix spelling correction correcting ./foo -> ../foo2 (jean-luc leger)
* PR/120: string0 in filetest does not have enough space.