Log message:
{standalone-,static-,}tcsh: Update to 6.21.00

pkgsrc changes:
 - Add patch-nls_Makefile.in to avoid +x bit in *.cat files
 - Remove no longer needed patches (all applied upstream):
   patch-ed.chared.c, patch-ed.inputl.c, patch-nls-catgen, patch-sh.func.c,
   patch-tw.init.c

Changes:
V6.21.00 - 20190508
-------------------
 - Abort history loading on words and lines too long
     https://bugzilla.redhat.com/show_bug.cgi?id=1598502
 - PR/37: Introduce GetCmdChar() to avoid open coding array access.
   make closem() not close sockets so as not to affect nss_ldap.
     tcsh never creates sockets so that's ok (Miloslav Trmac)
 - PR/597: Make rmstar work with aliased rm
 - convert match() from recursive to backtracking.
 - Handle 8 bit characters in bindkey (Werner Fink)
 - Look for tgetent in libtinfo as well (Werner Fink)
 - Don't play pointer tricks that are undefined in modern c (Brooks Davis)
 - Fix out of bounds read (Brooks Davis)
 - Fix type of read in prompt confirmation (eg. rmstar) (David Kaspar)
 - PR/471: Delay arginp parsing

ok <kim>, thanks!

Log message:
shells/static-tcsh: Can't build static binaries on SunOS>=5.10.

SunOS>=5.10 stopped shipping static libraries, so it's not possible
to link a static tcsh binary.

Log message:
shells/{,static-,standalone}tcsh: Fix PKGREVISION & MAINTAINER.

The tcsh package Makefile is included directly by the static-tcsh
and standalone-tcsh Makefiles.  Modify some of the variables that
really need to be package-specific to be set with ?= in
tcsh/Makefile and document the package Makefiles that directly
include it.

Set PKGREVISION directly in static-tcsh and standalone-tcsh now
that they can have independent PKGREVISION values.

Bump the PKGREVISION of static-tcsh due to the MAINTAINER now
correctly being listed as agc@ due to this change.

Log message:
Add a DESCR here; noted missing by martin@, ok agc@.
The DESCR here is appended to the one from shells/tcsh.

Log message:
PKGNAME must be defined before include bsd.pkg.mk,
if not, in 'package' phase, PKGNAME==DISTNAME.

Remove WRKSRC definision, it equals to default value.

Log message:
Set maintainer to agc (original importer).

Log message:
move the various static shell packages back to their previous names.

Log message:
rename static-tcsh to tcsh-static. the convention in pkgsrc is for
mutations of packages to be named <pkg>-<mutation>.

add a CONFLICT on static-tcsh for obvious reasons.